CVE-2026-1937

YayMail <= 4.3.2 - Missing Authorization to Authenticated (Shop Manager+) Arbitrary Options Update via 'yaymail_import_state' AJAX Action

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

yaycommerce · YayMail – WooCommerce Email Customizer

CVSS v3.1 WORDFENCE

7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS

0.46% chance of exploitation in the next 30 days, 39th percentile

Published

2026-02-18

Updated

2026-04-14

Proof-of-concept exploits (1)

• Nxploited/CVE-2026-19370★ · 2026-04-18

References

• CVE Record
• NVD entry