PHP file include vulnerability in download.php in PHPSimplicity Simplicity oF Upload before 1.3.1 allows remote attackers to include arbitrary local and remote files via the language parameter and a terminating null ("%00") characters.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2005-2608
http://www.securityfocus.com/bid/14424
http://www.phpsimplicity.com/scripts.php?id=3
http://securitytracker.com/id?1014591