CVE-2026-1937 Missing authorization in YayMail – WooCommerce Email Customizer
Authenticated Shop Managers can update arbitrary options to escalate privileges to administrator due to missing capability checks in YayMail plugin.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-1937?
CVE-2026-1937 is a high-severity missing authorization vulnerability in yaycommerce YayMail – WooCommerce Email Customizer, published on 18 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The YayMail – WooCommerce Email Customizer plugin for WordPress is vulnerable to unauthorized modification of data that can lead to privilege escalation due to a missing capability check on the `yaymail_import_state` AJAX action in all versions up to, and including, 4.3.2. This makes it possible for authenticated attackers, with Shop Manager-level access and above, to update arbitrary options on the WordPress site. This can be leveraged to update the default role for registration to administrator and enable user registration for attackers to gain administrative user access to a vulnerable site.
Weakness: CWE-862
Which versions are affected by CVE-2026-1937?
How do I fix CVE-2026-1937?
No fix has been published for CVE-2026-1937 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-2026-1937 being exploited?
There is no known exploitation of CVE-2026-1937 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-77g9-fwj8-pcwg.