Response PageHandler::RequestAppBanner() {
  WebContentsImpl* web_contents = GetWebContents();
  if (!web_contents || !web_contents->GetDelegate())
    return Response::InternalError();
  web_contents->GetDelegate()->RequestAppBannerFromDevTools(web_contents);
  return Response::OK();
}

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.