CVE-2026-27366 WordPress MainWP Child plugin <= 6.1.1 - Broken Access Control vulnerability
Unauthenticated attackers can bypass access controls in the MainWP Child WordPress plugin, potentially accessing restricted functionality.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-27366?
CVE-2026-27366 is a high-severity missing authorization vulnerability in MainWP Child, published on 25 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Unauthenticated Broken Access Control in MainWP Child <= 6.1.1 versions.
Weakness: CWE-862
Which versions are affected by CVE-2026-27366?
How do I fix CVE-2026-27366?
No fix has been published for CVE-2026-27366 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-2026-27366 being exploited?
There is no known exploitation of CVE-2026-27366 in the wild and no public exploit code.
Sources
Also known as GHSA-hpf4-4ccj-785m.