CVE-2021-4396: Rucy Project Rucy

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

The Rucy plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 0.4.4. This is due to missing or incorrect nonce validation on the save_rc_post_meta() function. This makes it possible for unauthenticated attackers to save post meta via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Affected products

• Rucy Project Rucy: up to and including 0.4.4

Published 2023-07-01. Last modified 2026-06-17.