Low severity2.7NVD Advisory· Published Feb 18, 2026· Updated Apr 15, 2026
CVE-2026-1831
CVE-2026-1831
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.
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Affected products
1- Range: <=4.3.2
Patches
Vulnerability mechanics
References
5- plugins.trac.wordpress.org/browser/yaymail/tags/4.3.2/src/Ajax.phpnvd
- plugins.trac.wordpress.org/browser/yaymail/tags/4.3.2/src/Controllers/AddonController.phpnvd
- plugins.trac.wordpress.org/browser/yaymail/trunk/src/Ajax.phpnvd
- plugins.trac.wordpress.org/changesetnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/a568162a-5a2d-47ab-9dfe-2f2f5f324f0dnvd
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