void NavigatorImpl::CheckWebUIRendererDoesNotDisplayNormalURL(
    RenderFrameHostImpl* render_frame_host,
    const GURL& url) {
  int enabled_bindings =
      render_frame_host->render_view_host()->GetEnabledBindings();
  bool is_allowed_in_web_ui_renderer =
      WebUIControllerFactoryRegistry::GetInstance()->IsURLAcceptableForWebUI(
          render_frame_host->frame_tree_node()
              ->navigator()
              ->GetController()
              ->GetBrowserContext(),
          url);
  if ((enabled_bindings & BINDINGS_POLICY_WEB_UI) &&
      !is_allowed_in_web_ui_renderer) {
    GetContentClient()->SetActiveURL(url);
    CHECK(0);
  }
}

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.