CVE-2021-4427: Vuukle Comments, Reactions, Share Bar, Revenue

Medium severity, CVSS 4.3. EPSS: 0.6% chance of exploitation in the next 30 days.

The Vuukle Comments, Reactions, Share Bar, Revenue plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.4.31. This is due to missing or incorrect nonce validation in the /admin/partials/free-comments-for-wordpress-vuukle-admin-display.php file. This makes it possible for unauthenticated attackers to edit the plugins settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Affected products

• Vuukle Vuukle Comments, Reactions, Share Bar, Revenue: up to and including 3.4.31

Published 2023-07-12. Last modified 2026-06-17.