CVE-2025-3766 Login Lockdown & Protection <= 2.11 - Missing Authorization to Authenticated (Subscriber+) Arbitrary IP Whitelisting
Authenticated subscribers can bypass IP restrictions by whitelisting arbitrary IPs due to missing capability checks in the Login Lockdown plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-3766?
CVE-2025-3766 is a medium-severity missing authorization vulnerability in webfactory Login Lockdown & Protection, published on 7 May 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-862
Which versions are affected by CVE-2025-3766?
How do I fix CVE-2025-3766?
No fix has been published for CVE-2025-3766 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-3766 being exploited?
There is no known exploitation of CVE-2025-3766 in the wild and no public exploit code.
Sources
Also known as GHSA-v2x8-7qj6-pc6f.