Radio Buttons for Taxonomies <= 2.0.5 - Cross-Site Request Forgery Bypass

The Radio Buttons for Taxonomies plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.0.5. This is due to missing or incorrect nonce validation on the save_single_term() function. This makes it possible for unauthenticated attackers to save terms via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.