    public function checkPermissions (&$model, $action=null) {
        return Yii::app()->params->isAdmin || 
            (!$model->private || $model->uploadedBy === Yii::app()->user->name) && 
            $this->asa ('PermissionsBehavior')->checkPermissions ($model, $action);
    }
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.