Description
OS command injection in the advanced-rule parser of ConfigServer Security & Firewall allows a remote attacker who controls a configured allow/deny feed to execute arbitrary commands as root, due to insufficient validation of feed-supplied rule data.

The vulnerability affects versions of the software originally distributed by ConfigServer, as well as versions of the WebPros-maintained fork that contain the vulnerable code. WebPros has addressed the vulnerability in version 16.30. Other forks or independently maintained versions of ConfigServer Security & Firewall (CSF) may also be affected and should be evaluated independently.
Published: 2026-09-10
Score: 9.5 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 10 Sep 2026 19:45:00 +0000

Type Values Removed Values Added
Title Command Injection via ConfigServer Security & Firewall Advanced-Rule Parser

Thu, 10 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 10 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Title Command Injection via ConfigServer Security & Firewall Advanced-Rule Parser

Thu, 10 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
Description OS command injection in the advanced-rule parser of ConfigServer Security & Firewall allows a remote attacker who controls a configured allow/deny feed to execute arbitrary commands as root, due to insufficient validation of feed-supplied rule data. The vulnerability affects versions of the software originally distributed by ConfigServer, as well as versions of the WebPros-maintained fork that contain the vulnerable code. WebPros has addressed the vulnerability in version 16.30. Other forks or independently maintained versions of ConfigServer Security & Firewall (CSF) may also be affected and should be evaluated independently.
Weaknesses CWE-78
References
Metrics cvssV4_0

{'score': 9.5, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}


Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published:

Updated: 2026-09-10T18:19:47.504Z

Reserved: 2026-07-22T15:00:06.103Z

Link: CVE-2026-65639

cve-icon Vulnrichment

Updated: 2026-09-10T18:19:33.742Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-10T17:17:05.190

Modified: 2026-09-10T19:54:25.810

Link: CVE-2026-65639

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-10T19:30:06Z

Weaknesses
  • CWE-78

    Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')