    public function validate($string, $config, $context) {
        $token = $context->get('CurrentToken', true);
        if ($token && $token->name == $this->element) return false;
        return $this->def->validate($string, $config, $context);
    }
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.