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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 · Login Lockdown & Protection

Check if you run it

No confirmed exploitation is on record for CVE-2025-3766. EPSS is 0.33%. Act only if a listed version of Login Lockdown & Protection is installed.

Severity
Medium5.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.33%
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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

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

How to fix CVE-2025-3766

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-3766. EPSS is 0.33%. Act only if a listed version of Login Lockdown & Protection is installed.

Which versions are affected?

Compare what you have installed with webfactory Login Lockdown & Protection 0 ≤2.11 0 ≤2.11. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.33%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

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

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.