CVE Catalog

CVE-2026-67402

CriticalCVSS 9.2
Published: Translated: NVD NIST

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 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.

Risk Assessment

An attacker can bypass IP blocking and execute arbitrary commands on the server, potentially leading to full system compromise.

Recommendation

Update ConfigServer Security & Firewall to version 16.31 or later and review Apache configuration for insecure CGI mappings.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS