Description
Webmin through 2.670 contains a privilege escalation vulnerability in acl/save_group.cgi that allows delegated administrators to grant unauthorized modules by submitting arbitrary module lists in the mod parameter. Attackers with Webmin Users module access can create or edit groups holding modules like Command Shell and assign themselves membership to execute commands as root.
Published: 2026-11-11
Score: 8.6 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Wed, 11 Nov 2026 19:00:00 +0000

Type Values Removed Values Added
Description Webmin through 2.670 contains a privilege escalation vulnerability in acl/save_group.cgi that allows delegated administrators to grant unauthorized modules by submitting arbitrary module lists in the mod parameter. Attackers with Webmin Users module access can create or edit groups holding modules like Command Shell and assign themselves membership to execute commands as root.
Title Webmin through 2.670 Privilege Escalation via acl/save_group.cgi
First Time appeared Webmin
Webmin webmin
Weaknesses CWE-269
CPEs cpe:2.3:a:webmin:webmin:*:*:*:*:*:*:*:*
Vendors & Products Webmin
Webmin webmin
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

Webmin Webmin
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-11T18:41:10.880Z

Reserved: 2026-11-11T18:27:27.098Z

Link: CVE-2026-126780

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-11-11T19:17:38.993

Modified: 2026-11-11T19:17:39.123

Link: CVE-2026-126780

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-269

    Improper Privilege Management