source: http://www.securityfocus.com/bid/25912/info

UebiMiau is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input.

Exploiting this vulnerability may allow an attacker to perform cross-site scripting attacks on unsuspecting users in the context of the affected website. As a result, the attacker may be able to steal cookie-based authentication credentials and to launch other attacks. 

http://www.example.com/index.php?lid=de&tid=modern_blue&f_user=&six=&f_email=[XSS]