---
id: CVE-2026-67402
title: >-
  An insecure Apache configuration in ConfigServer Security & Firewall maps
  /usr/bin as CGI programs through the Messenger v3 HTTPS virtual host
summary: >-
  An insecure Apache configuration in ConfigServer Security & Firewall maps
  /usr/bin as CGI programs through the Messenger v3 HTTPS virtual host. A remote
  unauthenticated attacker whose address is blocked can request a mapped
  executable an…
severity: none
cwe:
  - CWE-552
published: '2026-09-04'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T15:41:24.427'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-67402'
references:
  - url: >-
      https://support.cpanel.net/hc/en-us/articles/43171958716439-Security-CSF-Security-Release-September-3rd-2026
    label: support@hackerone.com
tags:
  - nvd
epss: 0.00544
epssPercentile: 0.4332
ingestedAt: '2026-09-09T16:14:05.518Z'
---

## Overview

An insecure Apache configuration in ConfigServer Security & Firewall maps /usr/bin as CGI programs through the Messenger v3 HTTPS virtual host. A remote unauthenticated attacker whose address is blocked can request a mapped executable and run arbitrary commands as the Apache user. The vulnerability affects installations where CSF Messenger v3 and its HTTPS mode are enabled. WebPros addressed the vulnerability in version 16.31.

## Remediation

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