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.
History

Sat, 05 Sep 2026 22:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 04 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Configserver
Configserver configserver Security Firewall
Vendors & Products Configserver
Configserver configserver Security Firewall

Fri, 04 Sep 2026 02:15:00 +0000

Type Values Removed Values Added
Title Remote Command Execution via Insecure Apache CGI Mapping in ConfigServer Security & Firewall Messenger v3

Fri, 04 Sep 2026 00:00:00 +0000

Type Values Removed Values Added
Description 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.
Weaknesses CWE-552
References
Metrics cvssV4_0

{'score': 9.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published: 2026-09-03T23:57:15.878Z

Updated: 2026-09-04T19:47:36.330Z

Reserved: 2026-07-29T15:00:02.294Z

Link: CVE-2026-67402

cve-icon Vulnrichment

Updated: 2026-09-04T19:47:32.422Z

cve-icon NVD

Status : Deferred

Published: 2026-09-04T00:17:13.690

Modified: 2026-09-09T15:41:24.427

Link: CVE-2026-67402

cve-icon Redhat

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