Vulnerability · Published Nov 28, 2025 · Assigned by Wordfence
CVE-2025-13737Nextend Social Login and Register <= 3.1.21 - Cross-Site Request Forgery to Unlink User Social Login
Medium 4.3
In plain English
A medium-severity cross-site request forgery in Nextend Social Login and Register from nextendweb. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).
Official description
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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| nextendweb | Nextend Social Login and Register | 0 – through 3.1.21 |
Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9c6b747e-d267-4fd3-a4fd-022aa657c796?source=cve
- https://plugins.trac.wordpress.org/browser/nextend-facebook-connect/tags/3.1.21/includes/provider.php#L772
- https://plugins.trac.wordpress.org/changeset/3404174/nextend-facebook-connect/trunk/includes/provider.php