CVE-2026-1937

critical

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.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/5a17ded3-340d-494f-be7e-2550dab360bc?source=cve

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3460087%40yaymail&new=3460087%40yaymail&sfp_email=&sfph_mail=

https://plugins.trac.wordpress.org/browser/yaymail/trunk/src/Models/MigrationModel.php#L143

https://plugins.trac.wordpress.org/browser/yaymail/tags/4.3.2/src/Models/MigrationModel.php#L143

Details

Source: Mitre, NVD

Published: 2026-02-18

Updated: 2026-02-18

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00042