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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Yaymail Plugin | — | Update yaymail plugin to version 4.3.3, or a newer patched version | Feb 18, 2026 | Feb 17, 2026 |
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