bugtraq - XSS vulnerability in Zikula Application Framework

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Message-Id: <201004271203.o3RC3JIZ076041@htbridge.ch>
Date: Tue, 27 Apr 2010 14:03:19 +0200 (CEST)
From: advisory@...ridge.ch
To: bugtraq@...urityfocus.com
Subject: XSS vulnerability in Zikula Application Framework

Vulnerability ID: HTB22348
Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_zikula_application_framework.html
Product: Zikula Application Framework
Vendor: Zikula Software Foundation
Vulnerable Version: 1.2.2 and Probably Prior Versions
Vendor Notification: 13 April 2010 
Vulnerability Type: XSS (Сross Site Sсriрting)
Status: Fixed by Vendor
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 "ZLanguage.php" script to properly sanitize user-supplied input in "lang" 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://www.tst.my/?lang=en%27%22%3E%3Cimg%20src=0%20onerror=alert%28document.cookie%29%3E

http://www.tst.my/index.php?module=adminpanel&type=admin&func=adminpanel&lang=en%27%22%3E%3Cimg%20src=0%20onerror=alert%28document.cookie%29%3E

Solution: Upgrade to the most recent verison