   function getRights($interface = 'central') {

      $values = [READ                => __('Read'),
                      CREATE              => __('Create'),
                      PURGE               => _x('button', 'Delete permanently'),
                      self::CHECKUPDATE   => __('Check for upgrade')];
      return $values;
   }
The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.