    public function confirm()
    {
        $task = $this->getTask();
        $subtask = $this->getSubtask();

        $this->response->html($this->template->render('subtask/remove', array(
            'subtask' => $subtask,
            'task' => $task,
        )));
    }
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.