What the vulnerability does
01Description
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.
Explanation of Vulnerability in Simple Terms
02Summary
YayMail for WooCommerce versions up to 4.3.2 lack proper authorization checks, allowing high-privilege users to read sensitive data and modify site content. An attacker with administrative or shop manager access can access restricted functionality without additional verification. This affects email customization settings and potentially customer data.
What an attacker can do
03Attacker Capabilities
Read sensitive data and modify site content if they have high-level admin or shop manager access.
Potential impact on your site
04Site Impact
Trusted admins or shop managers could abuse their role to access restricted features or modify email templates without authorization checks.
Conditions required to exploit
05Prerequisites
Attacker must have high-privilege account access (admin or shop manager role) on the WordPress site.
Key dates
06Disclosure timeline
February 18, 2026
CVE published
April 14, 2026
Record updated
