CVE-2025-13737
Nextend Social Login and Register <= 3.1.21 - Cross-Site Request Forgery to Unlink User Social Login
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-352 |
| Vendor | nextendweb |
| Product | nextend social login and register |
| Published | Nov 28, 2025 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
nextendweb / Nextend Social Login and Register
0 ≤ 3.1.21
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/9c6b747e-d267-4fd3-a4fd-022aa657c796?source=cve 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
Credits
M Indra Purnama