XSS in eliteCMS

Vulnerability ID: HTB22354
Reference: http://www.htbridge.ch/advisory/xss_in_elitecms.html
Product: eliteCMS
Vendor: Elite Graphix
Vulnerable Version: 1.01 and Probably Prior Versions
Vendor Notification: 18 April 2010 
Vulnerability Type: XSS (Cross Site Scripting)
Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response
Risk level: Medium 
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 "/admin/edit_page.php" script to properly sanitize user-supplied input in "page" 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://example.com/admin/edit_page.php?page=2%22%3E%3Cscript%3Ealert%28document.cookie%29%3C/script%3E