CVE-2025-3766
Login Lockdown & Protection <= 2.11 - Missing Authorization to Authenticated (Subscriber+) Arbitrary IP Whitelisting
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
The Login Lockdown & Protection plugin for WordPress is vulnerable to unauthorized nonce access due to a missing capability check on the ajax_run_tool function in all versions up to, and including, 2.11. This makes it possible for authenticated attackers, with Subscriber-level access and above, to obtain a valid nonce that can be used to generate a global unlock key, which can in turn be used to add arbitrary IP address to the plugin allowlist. This can only by exploited on new installations where the site administrator hasn't visited the loginlockdown page yet.
| CWE | CWE-862 |
| Vendor | webfactory |
| Product | login lockdown & protection |
| Published | May 7, 2025 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
webfactory / Login Lockdown & Protection
0 ≤ 2.11
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/ac9a3848-f486-475b-b2c7-ea1007bb30d3?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/login-lockdown/trunk/libs/ajax.php#L17 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3286814/login-lockdown
Credits
Trương Hữu Phúc (truonghuuphuc)