source: https://www.securityfocus.com/bid/40519/info

TPO Duyuru Scripti is prone to an authentication-bypass vulnerability because it fails to adequately verify user-supplied input used for cookie-based authentication.

Attackers can exploit this vulnerability to gain administrative access to the affected application, which may aid in further attacks. 

The following example data is available:

javascript:document.cookie = "kullanici=; path=/";