PHPJunkyard 1.3 Open Redirect

`Vulnerability ID: HTB23029  
Reference: http://www.htbridge.ch/advisory/redirection_vulnerability_in_mboard.html  
Product: MBoard  
Vendor: PHPJunkyar ( http://www.phpjunkyard.com )   
Vulnerable Version: 1.3 and probably prior  
Tested on: 1.3  
Vendor Notification: 06 July 2011   
Vulnerability Type: Redirection vulnerability  
Status: Not Fixed  
Risk level: Low   
Credit: High-Tech Bridge SA Security Research Lab ( http://www.htbridge.ch/advisory/ )   
  
Vulnerability Details:  
High-Tech Bridge SA Security Research Lab has discovered vulnerability in MBoard, which can be exploited to conduct spoofing attacks.  
  
Input passed via the GET "url" parameter to go.php is not properly sanitised before being used to redirect users.  
This can be exploited to redirect a user to an arbitrary website.  
  
The following PoC code is available:  
  
http://[host]/go.php?url=http://example.com  
  
`