The Zen Sticky Social plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 0.3. This is due to missing or incorrect nonce validation on the 'zen-social-sticky/zen-sticky-social.php' page. This makes it possible for unauthenticated attackers to update settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
https://plugins.trac.wordpress.org/browser/zen-social-sticky/trunk/zen-sticky-social.php