What the vulnerability does
01Description
The YayMail – WooCommerce Email Customizer plugin for WordPress is vulnerable to unauthorized license key deletion due to a missing authorization check on the `/yaymail-license/v1/license/delete` REST endpoint in versions up to, and including, 4.3.2. This makes it possible for authenticated attackers, with Shop Manager-level access and above, to delete the plugin's license key via the '/yaymail-license/v1/license/delete' endpoint granted they can obtain the REST API nonce.
Explanation of Vulnerability in Simple Terms
02Summary
YayMail for WooCommerce versions up to 4.3.2 lack proper authorization checks, allowing unauthenticated attackers to modify email content or settings. The vulnerability requires only network access and no user interaction. Site administrators should update to a version newer than 4.3.2 to restore proper access controls.
What an attacker can do
03Attacker Capabilities
Modify WooCommerce email templates or settings without authentication.
Potential impact on your site
04Site Impact
Attackers can alter transactional emails sent to customers, potentially for phishing or fraud.
Conditions required to exploit
05Prerequisites
Network access only; no authentication or user interaction required.
Key dates
06Disclosure timeline
February 18, 2026
CVE published
April 8, 2026
Record updated
