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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 (Ðross Site SÑriÑting)
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: 



Solution: Upgrade to the most recent verison