MyBB 1.6 Path Disclosure

`Vulnerability ID: HTB22654  
Reference: http://www.htbridge.ch/advisory/path_disclosure_in_mybb.html  
Product: MyBB  
Vendor: MyBB ( http://www.mybb.com )   
Vulnerable Version: 1.6   
Vendor Notification: 13 October 2010   
Vulnerability Type: Path disclosure  
Status: Not Fixed, Vendor Alerted, Awaiting Vendor Response  
Risk level: Low   
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/)   
  
Vulnerability Details:  
The vulnerability exists due to failure in the "/forumdisplay.php" script to properly sanitize user-supplied input in mybb[forumread] variable from cookie, it's possible to generate an error that will reveal the full path of the script.  
A remote user can determine the full path to the web root directory and other potentially sensitive information.  
  
  
Cookie: mybb[forumread]=%4f%3a%31%3a%22%31%22%3a%31%3a%7b%73%3a%31%3a%22%31%22%3b%61%3a%32%3a%7b%69%3a%30%3b%73%3a%31%3a%22%31%22%3b%69%3a%31%3b%73%3a%31%3a%22%32%22%3b%7d%7d;  
  
  
`