---
id: CVE-2026-111829
title: WordPress WP Mailster plugin <= 1.9.1.0 - Local File Inclusion vulnerability
summary: >-
  Improper Control of Filename for Include/Require Statement in PHP Program
  ('PHP Remote File Inclusion') vulnerability in WP Mailster WP Mailster
  wp-mailster allows PHP Local File Inclusion.This issue affects WP Mailster:
  from n/a through…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-98
vendor: WP Mailster
product: wp-mailster
affected:
  - wp-mailster <= 1.9.1.0
published: '2026-10-19'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T13:28:59.097Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111829'
references:
  - url: >-
      https://patchstack.com/database/wordpress/plugin/wp-mailster/vulnerability/wordpress-wp-mailster-plugin-1-9-1-0-local-file-inclusion-vulnerability?_s_id=cve
tags:
  - cve.org
ingestedAt: '2026-10-19T14:30:01.083Z'
---

## Overview

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in WP Mailster WP Mailster wp-mailster allows PHP Local File Inclusion.This issue affects WP Mailster: from n/a through 1.9.1.0.

## Affected

- `wp-mailster <= 1.9.1.0`

## Remediation

Update the WordPress WP Mailster plugin to the latest available version (at least 1.9.2.0).