MultiCMS 'lng' Parameter Local File Include Vulnerability

Summary
MultiCMS is prone to a local file-include vulnerability because it fails to properly sanitize user-supplied input. An attacker can exploit this vulnerability to obtain potentially sensitive information and to execute arbitrary local scripts in the context of the webserver process. This may allow the attacker to compromise the application and the computer other attacks are also possible.
Solution
Reportedly, the vendor has fixed the issue however, Symantec has not confirmed it. Please contact the vendor for more information.
References