CVE-2026-67599

ClearOS 7.9 contains an OS command injection vulnerability in the Log Viewer component that allows authenticated attackers to execute arbitrary commands by submitting unsanitized input through the filter parameter, which is interpolated directly into a shell command in File.php. Attackers can inject command substitution payloads into the filter parameter to execute arbitrary commands as the webconfig user, and due to extensive NOPASSWD sudo privileges granted to that user by default, immediately escalate to root.

CVSS v3 7.2 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://clearos.com/
https://lazytitan.ro/clearos
https://www.vulncheck.com/advisories/clearos-os-command-injection-via-log-viewer-filter-parameter

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-03 20:17

Updated : 2026-08-04 18:16

NVD link : CVE-2026-67599

Mitre link : CVE-2026-67599

CVE.ORG link : CVE-2026-67599

JSON object : View

Products Affected

No product.

CWE

CWE-78

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

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