Login Lockdown & Protection <= 2.14 - IP Block Bypass
Affected versions: *-2.14
Vulnerability type: CWE-330 Use of Insufficiently Random Values
Affected software, patched versions and attribution
The Login Lockdown & Protection plugin for WordPress is vulnerable to IP Block Bypass in all versions up to, and including, 2.14. This is due to $unblock_key key being insufficiently random allowing unauthenticated users, with access to an administrative user email, to generate valid unblock keys for their IP Address. This makes it possible for unauthenticated attackers to bypass blocks due to invalid login attempts.
Login Lockdown & Protection
Affected versions: *-2.14
Patched versions: 2.15
Researcher credit: William Cooke
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- Published
- December 12, 2025
- CVSS
- 5.3