CVE-2026-1831CWE-862

YayMail <= 4.3.2 - Missing Authorization to Authenticated (Shop Manager+) Plugin Installation and Activation

Low · published February 18, 2026

CVSS v3.1
2.7
EPSS
0%
Percentile
24.8
In the wild
Unconfirmed
What it is

The YayMail - WooCommerce Email Customizer plugin for WordPress is vulnerable to unauthorized plugin installation and activation due to missing capability checks on the 'yaymail_install_yaysmtp' AJAX action and `/yaymail/v1/addons/activate` REST endpoint 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 install and activate the YaySMTP plugin.

The record
Technical detail
CVSS v3.1
2.7 · LOW
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00330 · 24.8th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-02-18T07:25Z
EPSS history
Timeline
  • 18 FEB 07:25Z
    YayMail <= 4.3.2 - Missing Authorization to Authenticated (Shop Manager+) Plugin Installation and Activation
    cvelistv5