bool ExtensionInstallDialogView::Cancel() {
  if (handled_result_)
    return true;

  handled_result_ = true;
  UpdateInstallResultHistogram(false);
  if (sampling_event_)
    sampling_event_->CreateUserDecisionEvent(ExperienceSamplingEvent::kDeny);
  base::ResetAndReturn(&done_callback_)
      .Run(ExtensionInstallPrompt::Result::USER_CANCELED);
  return true;
}

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.