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CVE-2025-13737

MEDIUM 4.3 CVSS 3.1
Published
November 28, 2025
Last modified
October 8, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-352
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

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 WordPress components

  • Nextend Social Login and Register Plugin · nextend-facebook-connect
    Confirmed match Active
    Up to and including 3.1.21
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • nextendweb Nextend Social Login and Register — Up to and including 3.1.21

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/nextend-facebook-connect/tags/3.1.21/includes/provider.php#L772
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3404174/nextend-facebook-connect/trunk/includes/provider.php
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/9c6b747e-d267-4fd3-a4fd-022aa657c796?source=cve
  • nvd.nist.gov Official NVD record