AOH :: HP Unsorted F :: B1A-1503.HTM

FestOS XSS vulnerability
XSS vulnerability in FestOS
XSS vulnerability in FestOS

Vulnerability ID: HTB22473
Product: FestOS
Vendor: Skypanther Studios, Inc ( ) 
Vulnerable Version: 2.3b and Probably Prior Versions
Vendor Notification: 01 July 2010 
Vulnerability Type: Stored XSS (Cross Site Scripting)
Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response
Risk level: Medium 
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing ( 

Vulnerability Details:
User can execute arbitrary JavaScript code within the vulnerable application.

The vulnerability exists due to failure in the "/admin/do_snippets_edit.php" script to properly sanitize user-supplied input in "contents" 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:

action="http://host/admin/do_snippets_edit.php?tabname=Pages" method="post" name="main" >

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