The Custom Twitter Feeds – A Tweets Widget or X Feed Widget plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.2.1. This is due to missing or incorrect nonce validation on the ctfautosavetokens function. This makes it possible for unauthenticated attackers to update the site's twitter API token and secret via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.