void RenderFrameHostManager::EnsureRenderFrameHostPageFocusConsistent() {
  frame_tree_node_->frame_tree()->SetPageFocus(
      render_frame_host_->GetSiteInstance(), frame_tree_node_->frame_tree()
                                                 ->root()
                                                 ->current_frame_host()
                                                 ->GetRenderWidgetHost()
                                                 ->is_focused());
}

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.