    public static function access ($grp='4') {
        if ( isset($_SESSION['gxsess']['val']['group']) ) {
            if($_SESSION['gxsess']['val']['group'] <= $grp) {
                return true;
            }else{
                return false;
            }
        }
    }

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.