---
id: CVE-2026-109219
title: >-
  Mang Board <= 2.4.4 - Unauthenticated Arbitrary File Upload via 'image_path'
  Parameter
summary: >-
  The Mang Board plugin for WordPress is vulnerable to Arbitrary File Upload in
  all versions up to, and including, 2.4.4 via the mbw_file_upload function.
  This is due to missing file extension validation on the attacker-supplied
  image_path…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-434
vendor: kitae-park
product: Mang Board
affected:
  - mang_board <= 2.4.4
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T04:26:58.632Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-109219'
references:
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/1e4f4860-b4c9-4f41-b1d0-0b2da8c88b99?source=cve
  - url: >-
      https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.4/includes/functions/func.api.php#L972
  - url: >-
      https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.4/includes/functions/func.api.php#L902
  - url: >-
      https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.4/includes/functions/func.api.php#L903
  - url: >-
      https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.4/api/mb-board.php#L428
  - url: >-
      https://plugins.trac.wordpress.org/browser/mangboard/tags/2.4.4/includes/mb-actions.php#L520
  - url: 'https://wordpress.org/plugins/mangboard/'
  - url: >-
      https://plugins.trac.wordpress.org/changeset/3743247/mangboard/trunk/includes/functions/func.api.php
tags:
  - cve.org
ingestedAt: '2026-10-16T04:58:47.494Z'
---

## Overview

The Mang Board plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 2.4.4 via the mbw_file_upload function. This is due to missing file extension validation on the attacker-supplied image_path parameter, whose basename-derived file name bypasses the extension allowlist applied only to the separate file_name parameter. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible. Exploitation requires the board to be configured to allow guest posts, which is the plugin's default mode; the required nonce is printed on every public board page, making it readable by any unauthenticated visitor without a WordPress login.

## Affected

- `mang_board <= 2.4.4`

## Remediation

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