CVE-2025-66143 WordPress Crumber plugin <= 1.0.10 - Broken Access Control vulnerability
Attackers can bypass access controls in the Crumber WordPress plugin to perform unauthorized actions due to missing authorization checks.
- 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-2025-66143?
CVE-2025-66143 is a medium-severity missing authorization vulnerability in merkulove Crumber, published on 22 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Missing Authorization vulnerability in merkulove Crumber crumber-elementor allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Crumber: from n/a through <= 1.0.10.
Weakness: CWE-862
Which versions are affected by CVE-2025-66143?
How do I fix CVE-2025-66143?
No fix has been published for CVE-2025-66143 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-2025-66143 being exploited?
There is no known exploitation of CVE-2025-66143 in the wild and no public exploit code.
Sources
Also known as GHSA-5rmr-3wvq-9rp2.