The Estatebud – Properties & Listings plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 5.5.0. This is due to missing or incorrect nonce validation on the 'estatebud_settings' page. This makes it possible for unauthenticated attackers to update the plugin's settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.