WordPress Meta Data and Taxonomies Filter (MDTF) < 1.3.3.2 - Cross-Site Request Forgery

Description

The WordPress Meta Data and Taxonomies Filter (MDTF) plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.3.3.1. This is due to missing or incorrect nonce validation on the change_meta_key() function. This makes it possible for unauthenticated attackers to perform an unauthorized action via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.