The Skysa Text Ticker App plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.4. This is due to missing or incorrect nonce validation on the SkysaApps_Admin_AppPage function. This makes it possible for unauthenticated attackers to trick a site administrator into making a forged request to modify the plugin's settings, including the scrolling message text and URL, via a forged cross-site request via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.