DZCP 1.5.4 Local File Inclusion

`Vulnerability ID: HTB22656  
Reference: http://www.htbridge.ch/advisory/lfi_in_dzcp.html  
Product: DZCP   
Vendor: dzcp.de ( http://www.dzcp.de )   
Vulnerable Version: 1.5.4   
Vendor Notification: 13 October 2010   
Vulnerability Type: Local File Inclusion  
Status: Fixed by Vendor  
Risk level: High   
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/)   
  
Vulnerability Details:  
The vulnerability exists due to failure in the "/index.php" script to properly sanitize user-supplied input in [prefix]_language variable from cookie.  
  
The following PoC is available:  
  
  
Cookie: [prefix]_language=../../../1;  
  
File must exist.   
Solution: Upgrade to the most recent version  
`