bugtraq - HTB22902: XSS in SyndeoCMS

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Message-Id: <201103241053.p2OArUXh075303@htbridge.ch>
Date: Thu, 24 Mar 2011 11:53:30 +0100 (CET)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: HTB22902: XSS in SyndeoCMS

Vulnerability ID: HTB22902
Reference: http://www.htbridge.ch/advisory/xss_in_syndeocms.html
Product: SyndeoCMS
Vendor: http://www.syndeocms.org/ ( http://www.syndeocms.org/ ) 
Vulnerable Version: 2.8.02
Vendor Notification: 10 March 2011 
Vulnerability Type: XSS (Cross Site Scripting)
Risk level: Medium 
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) 

Vulnerability Details:
The vulnerability exists due to failure in the "/starnet/addons/scroll_page" script to properly sanitize user-supplied input in "speed" variable.
User can execute arbitrary JavaScript code within the vulnerable application.
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.

The following PoC is available:

[code]
http://[host]/starnet/addons/scroll_page.php?speed=--%3E%3C/script%3E%3C/head%3E%3Cscript%3Ealert%28%22XSS%22%29;%3C/script%3E
[/code]