CVE-2025-13737: Nextendweb Nextend Social Login And Register

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

The Nextend Social Login and Register plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.1.21. This is due to missing or incorrect nonce validation on the 'unlinkUser' function. This makes it possible for unauthenticated attackers to unlink the user's social login via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Affected products

• Nextendweb Nextend Social Login And Register: up to and including 3.1.21

Published 2025-11-28. Last modified 2026-10-08.