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CVE PROGRAM SOURCE RECORD8.6 High

CVE-2026-67599

ClearOS 7.9 OS Command Injection via Log Viewer filter parameter

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

ClearFoundation ClearOS

Default version status: affected

  • 7.9affected

References