phpwebftp -- "language" Local File Inclusion

Secunia reports:

phpWebFTP have a vulnerability, which can be exploited by malicious people to disclose sensitive information.

Input passed to the "language" parameter in index.php isn't properly verified, before it is used to include files. This can be exploited to include arbitrary files from local resources.

Successful exploitation requires that "magic_quotes_gpc" is disabled.

[source]