YayMail – WooCommerce Email Customizer, CVE-2026-1937

CVE, Research URL: CVE-2026-1937
Home page URL: Security reports for YayMail – WooCommerce Email Customizer
Application: YayMail – WooCommerce Email Customizer
Published on: Feb 18, 2026
Research 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.
Affected versions: max 4.3.3.
Status: vulnerable

YayMail &#8211; WooCommerce Email Customizer, CVE-2026-1937