Auth bypass in Yaycommerce Yaymail – Woocommerce Email Customizer
CVE-2026-1938
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.
Vulnerability class: Broken Access Control
EPSS: 0.003 (23.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Yaycommerce Yaymail – Woocommerce Email Customizer — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-1938?
- CVE-2026-1938 is a medium-severity vulnerability in Yaycommerce Yaymail – Woocommerce Email Customizer, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-02-18.
- How severe is CVE-2026-1938?
- Medium severity. CVSS v3 base score is 5.3 out of 10.