HTB22802: XSS in Podcast Generator

[advisory () htbridge ch]

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