XSS vulnerability in CuteSITE CMS

Vulnerability ID: HTB22397
Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_cutesite_cms.html
Product: CuteSITE CMS
Vendor: AMT Company
Vulnerable Version: 1.5.0 and Probably Prior Versions
Vendor Notification: 20 May 2010 
Vulnerability Type: XSS (Cross Site Scripting)
Status: Not Fixed, Vendor Alerted
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 "/manage/main.php" script to properly sanitize user-supplied input in "fld_path" 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/manage/main.php?fld_path=XXX%3Cscript%3Ealert%28document.cookie%29%3C/script%3E