CVE-2026-105055

WordPress WP Mailster plugin <= 1.9.0.0 - Broken Access Control vulnerability

Published Oct 5, 2026 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
Missing Authorization vulnerability in WP Mailster WP Mailster wp-mailster allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WP Mailster: from n/a through 1.9.0.0.

Remediation

Vendor Solution

Update the WordPress WP Mailster plugin to the latest available version (at least 1.9.1.0).

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions wp Mailster
Wpmailster
Wpmailster wp Mailster
Vendors & Products Wordpress-extensions
Wordpress-extensions wp Mailster
Wpmailster
Wpmailster wp Mailster
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Missing Authorization vulnerability in WP Mailster WP Mailster wp-mailster allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WP Mailster: from n/a through 1.9.0.0.
Title WordPress WP Mailster plugin <= 1.9.0.0 - Broken Access Control vulnerability
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Patchstack
Published
Updated
Oct 5, 2026, 12:25 PM
Reserved
Oct 3, 2026, 12:17 AM
Status
Deferred
Published
Oct 5, 2026, 9:17 AM
Modified
Oct 6, 2026, 3:04 PM