CVE-2026-27327 WordPress YayMail – WooCommerce Email Customizer plugin <= 4.3.2 - Broken Access Control vulnerability

Q: What is CVE-2026-27327?

CVE-2026-27327 is a medium-severity missing authorization vulnerability in YayCommerce YayMail, published on 19 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Q: Is CVE-2026-27327 being exploited?

There is no known exploitation of CVE-2026-27327 in the wild and no public exploit code.

Q: How do I fix CVE-2026-27327?

No fix has been published for CVE-2026-27327 yet. Limit exposure of the affected software until one is available.

Medium 4.3 Published 19 Feb 2026 Updated 28 Apr 2026

Attackers can bypass access controls in the YayMail WordPress 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-2026-27327?

CVE-2026-27327 is a medium-severity missing authorization vulnerability in YayCommerce YayMail, 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 YayCommerce YayMail yaymail allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects YayMail: from n/a through <= 4.3.2.

Weakness: CWE-862

Which versions are affected by CVE-2026-27327?

How do I fix CVE-2026-27327?

No fix has been published for CVE-2026-27327 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-2026-27327 being exploited?