And a solution for first bug (XSS): File: functions.php, function redirect() FIND: ---------------- function redirect($url, $message="", $title="") { global $header, $footer, $mybb, $theme, $headerinclude, $templates, $lang, $plugins; $redirect_args = array(?url? => &$url, ?message? => &$message, ?title? => &$title); $plugins->run_hooks_by_ref(?redirect?, $redirect_args); if($mybb->input['ajax']) ---------------- REPLACE WITH: ---------------- function redirect($url, $message="", $title="") { global $header, $footer, $mybb, $theme, $headerinclude, $templates, $lang, $plugins; $redirect_args = array(?url? => &$url, ?message? => &$message, ?title? => &$title); $plugins->run_hooks_by_ref(?redirect?, $redirect_args); $url = addslashes($url) ; if($mybb->input['ajax']) ----------------