bugtraq - HTB22802: XSS in Podcast Generator

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Message-Id: <201102031150.p13BosTj018810@htbridge.ch>
Date: Thu, 3 Feb 2011 12:50:54 +0100 (CET)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: HTB22802: XSS in Podcast Generator

Vulnerability ID: HTB22802
Reference: http://www.htbridge.ch/advisory/xss_in_podcast_generator.html
Product: Podcast Generator
Vendor: Alberto Betella ( http://podcastgen.sourceforge.net/ ) 
Vulnerable Version: 1.3
Vendor Notification: 20 January 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:
User can execute arbitrary JavaScript code within the vulnerable application.
The vulnerability exists due to failure in the "/core/themes.php" script to properly sanitize user-supplied input in "L_failedopentheme" variable when register_globals is on.
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:

http://[host]/core/themes.php?L_failedopentheme=%3Cscript%3Ealert%28%22XSS%22%29;%3C/script%3E