void TabSpecificContentSettings::AddBlockedResource(
    ContentSettingsType content_type,
    const std::string& resource_identifier) {
  if (!blocked_resources_[content_type].get())
    blocked_resources_[content_type].reset(new std::set<std::string>());
  blocked_resources_[content_type]->insert(resource_identifier);
}

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.