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Vulnerabilities

Vulnerability · CVE-2025-3766

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 t

Published May 7, 2025 · catalog updated Apr 8, 2026 · webfactory Login Lockdown & Protection

Severity
Medium5.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.3%
Remediation
Vendor / distro source
Affected products
vendor webfactory Login Lockdown & Protection 0 ≤2.11

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.

Technical analysis

Mechanism and impact are interpreted from ingested advisories — not independent exploit research.

  • CWE classification

    No CWE identifiers stored yet.

  • Prerequisites and impact

    Follow the original vendor advisory for access prerequisites and impact. This catalog does not invent exploit conditions.

How to fix CVE-2025-3766

What to do

Three reads of the same public record: the decision, the versions on file, and the signals. Confirm the vendor advisory before you patch. This page does not publish exploit steps.

Executive

This is a public record, not a confirmed incident. CVE-2025-3766 is a medium issue in webfactory Login Lockdown & Protection (CVSS 5.4). CISA does not currently list it as known exploited. Next step: Compare installed versions with the linked vendor advisory before changing production.

System administrator

Check whether webfactory Login Lockdown & Protection is installed. Ranges on record: webfactory Login Lockdown & Protection 0 ≤2.11 (0 ≤2.11). Compare installed versions with the linked vendor advisory before changing production.

Security analyst

CVSS 5.4. EPSS 0.3%. CISA does not currently list it as known exploited. Weaknesses: not classified. Sources: cve_org, epss, euvd. Exploit links, when listed below, point at the original publisher.

Related intelligence

  • Exploitation evidence

    Not listed as known exploited in CISA KEV. Not in CISA KEV or VulnCheck KEV.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 7, 2025 · EUVD

    Detected

    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 a

  2. Apr 8, 2026 · EUVD

    Updated

    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 a

Affected versions

Enter an installed version to get a verified affected / not-affected result against the ranges below.

  • vendor webfactory Login Lockdown & Protection 0 ≤2.110 ≤2.11

Sources

  • CVE.orgVulnerability recordCVE-2025-3766

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-3766

    30-day exploitation probability 0.3%

    first.org
  • EUVDVulnerability recordEUVD-2025-13666

    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 ac

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.