    WillProcessResponseObserverThrottle(content::NavigationHandle* handle,
                                        bool* will_process_response_called)
        : NavigationThrottle(handle),
          will_process_response_called_(will_process_response_called) {}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.