HTML Forms – Simple WordPress Forms Plugin <= 1.3.33 - Cross-Site Request Forgery

The HTML Forms – Simple WordPress Forms Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.3.33. This is due to missing or incorrect nonce validation on the process_bulk_action() function. This makes it possible for unauthenticated attackers to perform bulk actions like deleting forms via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.