Vulnerability ID: HTB22973 Reference: http://www.htbridge.ch/advisory/xss_in_ajax_calendar.html Product: AJAX Calendar Vendor: OpenCrypt ( http://www.opencrypt.com ) Vulnerable Version: 1.0 Vendor Notification: 21 April 2011 Vulnerability Type: XSS (Cross Site Scripting) Status: Fixed by Vendor Risk level: Medium Credit: High-Tech Bridge SA Security Research Lab ( http://www.htbridge.ch/advisory/ ) Vulnerability Details: User can execute arbitrary JavaScript code within the vulnerable application. The vulnerability exists due to failure in the "/example.php" script to properly sanitize user-supplied input. 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. [host] http://[host]/example.php?y=1%27%22%3E%3Cscript%3Ealert%28123%29;%3C/script%3E [/host] Solution: Upgrade to the most recent version