source: https://www.securityfocus.com/bid/12853/info PHP-Fusion is reportedly affected by a HTML injection vulnerability. This issue is due to the application failing to properly sanitize user-supplied input passed to the 'setuser.php' script before using it in dynamically generated content. This vulnerability is reported to affect PHP-Fusion version 5.01, however the vendor reports that the vulnerability might exist in an alteration that is planned for version 5.02. This alteration was recently released to the PHP-Fusion community as a mod for version 5.01. PHP-Fusion v5.01 Exploit

PHP-Fusion v5.01 Html Injection Exploit