CVE-2026-1831

LOW

YayMail WooCommerce Email Customizer <=4.3.2 - Privilege Escalation

Title source: llm
STIX 2.1

Description

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.

References (5)

Core 5

Scores

CVSS v3 2.7
EPSS 0.0029
EPSS Percentile 20.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-862
Status published
Products (1)
yaycommerce/YayMail – WooCommerce Email Customizer < 4.3.2
Published Feb 18, 2026
Tracked Since Feb 18, 2026