CVE-2026-23547 WordPress CMSMasters Content Composer plugin <= 2.5.8 - Broken Access Control vulnerability
Attackers can bypass access controls in the CMSMasters Content Composer plugin to perform unauthorized actions.
- 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-2026-23547?
CVE-2026-23547 is a high-severity missing authorization vulnerability in CMSMasters Content Composer, published on 19 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Missing Authorization vulnerability in cmsmasters CMSMasters Content Composer cmsmasters-content-composer allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects CMSMasters Content Composer: from n/a through <= 2.5.8.
Weakness: CWE-862
Which versions are affected by CVE-2026-23547?
How do I fix CVE-2026-23547?
No fix has been published for CVE-2026-23547 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-2026-23547 being exploited?
There is no known exploitation of CVE-2026-23547 in the wild and no public exploit code.
Sources
Also known as GHSA-6c3h-gxfp-37vm.