Gallarific - Multiple Script Direct Request Authentication Bypass

source: https://www.securityfocus.com/bid/28163/info
 
Gallarific is prone to a cross-site scripting vulnerability and multiple authentication-bypass vulnerabilities.
 
An attacker may leverage these issues to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site, steal cookie-based authentication credentials, add new categories, add new users, and modify existing users. Other attacks are also possible.
 
These issues affect both the commercial and the free versions of Gallarific.

http://www.example.com/gallery/gadmin/index.php?task=add  (categori add)
http://www.example.com/gallery/gadmin/users.php?task=edit&id=2 (user edit)
http://www.example.com/gallery/gadmin/users.php?task=add (user add)