bugtraq - XSS vulnerability in NPDS

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Message-Id: <201005131640.o4DGeiHA032288@htbridge.ch>
Date: Thu, 13 May 2010 18:40:44 +0200 (CEST)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: XSS vulnerability in NPDS

Vulnerability ID: HTB22363
Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_npds.html
Product: NPDS REvolution
Vendor: NPDS
Vulnerable Version: REvolution 10.02 and Probably Prior Versions
Vendor Notification: 29 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 "/viewtopic.php" script to properly sanitize user-supplied input in "topic" 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/viewtopic.php?topic=3"><script>alert(document.cookie)</script>&forum=1