XSS vulnerability in allinta CMS

Vulnerability ID: HTB22531
Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_allinta_cms_2.html
Product: Allinta CMS
Vendor: Allinta
Vulnerable Version: Current at 22.07.2010 and Probably Prior Versions
Vendor Notification: 26 July 2010
Vulnerability Type: 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 "menuCodeAE.asp" script to properly sanitize user-supplied input in "i" 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:


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