bool TabSpecificContentSettings::OnMessageReceived(
    const IPC::Message& message) {
  bool handled = true;
  IPC_BEGIN_MESSAGE_MAP(TabSpecificContentSettings, message)
    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_ContentBlocked, OnContentBlocked)
    IPC_MESSAGE_UNHANDLED(handled = false)
  IPC_END_MESSAGE_MAP()
  return handled;
}

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.