---
id: CVE-2026-105055
title: >-
  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.
summary: >-
  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.
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-862
vendor: WP Mailster
product: wp-mailster
affected:
  - wp-mailster <= 1.9.0.0
published: '2026-10-05'
updated: '2026-10-05'
sourceUpdated: '2026-10-05T13:16:52.077'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-105055'
references:
  - url: >-
      https://patchstack.com/database/wordpress/plugin/wp-mailster/vulnerability/wordpress-wp-mailster-plugin-1-9-0-0-broken-access-control-vulnerability?_s_id=cve
    label: audit@patchstack.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-05T12:24:49.985970Z'
ingestedAt: '2026-10-05T09:16:17.865Z'
epss: 0.00187
epssPercentile: 0.07525
---

## Overview

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

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.