Vulnerability ID: HTB22475 Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_phpwcms.html Product: phpwcms Vendor: Oliver Georgi ( http://www.phpwcms.de/ ) Vulnerable Version: 1.4.5 and Probably Prior Versions Vendor Notification: 01 July 2010 Vulnerability Type: Stored XSS (Cross Site Scripting) Status: Fixed by Vendor 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 "phpwcms.php" script to properly sanitize user-supplied input in "calendardate" 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: http://host/phpwcms.php?do=modules&module=calendar&calendardate=8-2010%22+onmouseover=alert%2834%29+style=position:absolute;width:100%;height:100%;left:0;top:0;+%22 Solution: Upgrade to the most recent version
