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NVD Vulnerability Details :
CVE-2026-1831
Awaiting Analysis
More InfoOfficial Page
Source-security@wordfence.com
View Known Exploited Vulnerability (KEV) details
Published At-18 Feb, 2026 | 08:16
Updated At-18 Feb, 2026 | 17:51

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.12.7LOW
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
Type: Primary
Version: 3.1
Base score: 2.7
Base severity: LOW
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-862Primarysecurity@wordfence.com
CWE ID: CWE-862
Type: Primary
Source: security@wordfence.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://plugins.trac.wordpress.org/browser/yaymail/tags/4.3.2/src/Ajax.php#L183security@wordfence.com
N/A
https://plugins.trac.wordpress.org/browser/yaymail/tags/4.3.2/src/Controllers/AddonController.php#L76security@wordfence.com
N/A
https://plugins.trac.wordpress.org/browser/yaymail/trunk/src/Ajax.php#L183security@wordfence.com
N/A
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3460087%40yaymail&new=3460087%40yaymail&sfp_email=&sfph_mail=#file11security@wordfence.com
N/A
https://www.wordfence.com/threat-intel/vulnerabilities/id/a568162a-5a2d-47ab-9dfe-2f2f5f324f0d?source=cvesecurity@wordfence.com
N/A
Hyperlink: https://plugins.trac.wordpress.org/browser/yaymail/tags/4.3.2/src/Ajax.php#L183
Source: security@wordfence.com
Resource: N/A
Hyperlink: https://plugins.trac.wordpress.org/browser/yaymail/tags/4.3.2/src/Controllers/AddonController.php#L76
Source: security@wordfence.com
Resource: N/A
Hyperlink: https://plugins.trac.wordpress.org/browser/yaymail/trunk/src/Ajax.php#L183
Source: security@wordfence.com
Resource: N/A
Hyperlink: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3460087%40yaymail&new=3460087%40yaymail&sfp_email=&sfph_mail=#file11
Source: security@wordfence.com
Resource: N/A
Hyperlink: https://www.wordfence.com/threat-intel/vulnerabilities/id/a568162a-5a2d-47ab-9dfe-2f2f5f324f0d?source=cve
Source: security@wordfence.com
Resource: N/A
Change History
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