diff --git a/Insecure Deserialization/PHP.md b/Insecure Deserialization/PHP.md
index 14bc206..08e002e 100644
--- a/Insecure Deserialization/PHP.md	
+++ b/Insecure Deserialization/PHP.md	
@@ -189,7 +189,6 @@ $poc->stopBuffering();
 ## References
 
 * [PHP Object Injection - OWASP](https://www.owasp.org/index.php/PHP_Object_Injection)
-* [PHP Object Injection - Thin Ba Shane](http://location-href.com/php-object-injection/)
 * [PHP unserialize](http://php.net/manual/en/function.unserialize.php)
 * [PHP Generic Gadget - ambionics security](https://www.ambionics.io/blog/php-generic-gadget-chains)
 * [POC2009 Shocking News in PHP Exploitation](https://www.owasp.org/images/f/f6/POC2009-ShockingNewsInPHPExploitation.pdf)
diff --git a/Upload Insecure Files/Picture Metadata/CVE-2021-22204_exiftool_echo.jpg b/Upload Insecure Files/Picture Metadata/CVE-2021-22204_exiftool_echo.jpg
new file mode 100644
index 0000000..1734547
Binary files /dev/null and b/Upload Insecure Files/Picture Metadata/CVE-2021-22204_exiftool_echo.jpg differ
diff --git a/Upload Insecure Files/Picture Metadata/CVE-2021-22204_exiftool_revshell.jpg b/Upload Insecure Files/Picture Metadata/CVE-2021-22204_exiftool_revshell.jpg
new file mode 100644
index 0000000..eca7e9b
Binary files /dev/null and b/Upload Insecure Files/Picture Metadata/CVE-2021-22204_exiftool_revshell.jpg differ