CVE-2026-105055

MEDIUM 5.3

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

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-862
Vendor	wp mailster
Product	wp mailster
Published	Oct 5, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

WP Mailster / WP Mailster

0 ≤ 1.9.0.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/wordpress/plugin/wp-mailster/vulnerability/wordpress-wp-mailster-plugin-1-9-0-0-broken-access-control-vulnerability?_s_id=cve

Credits

Ratchanon Chamnankit | Patchstack Bug Bounty Program