CVE-2025-11707

Login Lockdown & Protection <= 2.14 - IP Block Bypass

2025-12-12 15:27
William Cooke

Strategic Overview

Status
Patched in 2.15
Affected Version
<= 2.14
CVSS
5.3Medium
Weakness type
CWE-330 · Use of Insufficiently Random Values
CVE
CVE-2025-11707
View all Login Lockdown & Protection vulnerabilities

At a glance

CVE-2025-11707 is a medium-severity Use of Insufficiently Random Values vulnerability in the Login Lockdown & Protection WordPress plugin, affecting versions <= 2.14. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 2.15; sites on affected versions should update now. Disclosed December 2025, reported by William Cooke.

Vulnerability Overview

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.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-330: Use of Insufficiently Random Values

The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.

Remediation

Update to version 2.15, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Login Lockdown & Protection 2.15 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

Related records

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