    public static function secure()
    {
        if (!isset($_SESSION['gxsess']['val']['loggedin']) && !isset($_SESSION['gxsess']['val']['username']) ) {
            header('location: login.php');
        } else {
            return true;
        }
    }

The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.