int DownloadManagerImpl::RemoveDownloadsByURLAndTime(
    const base::Callback<bool(const GURL&)>& url_filter,
    base::Time remove_begin,
    base::Time remove_end) {
  int count = 0;
  auto it = downloads_.begin();
  while (it != downloads_.end()) {
    DownloadItemImpl* download = it->second.get();

    ++it;

    if (download->GetState() != DownloadItem::IN_PROGRESS &&
        url_filter.Run(download->GetURL()) &&
        download->GetStartTime() >= remove_begin &&
        (remove_end.is_null() || download->GetStartTime() < remove_end)) {
      download->Remove();
      count++;
    }
  }
  return count;
}

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.