CVE-2026-125391

HIGH 7.2

Webmin through 2.670 OS Command Injection via Samba User Account Options

CVSS Score

7.2

EPSS Score

0.0%

EPSS Percentile

0th

Webmin through 2.670 contains an OS command injection vulnerability in samba/save_euser.cgi that allows authenticated Samba user maintainers to inject commands via unvalidated opts parameter. Attackers can embed shell metacharacters in account option flags passed by create_user and modify_user to backquote_logged, executing commands as root.

CWE	CWE-78
Vendor	webmin
Product	webmin
Published	Nov 9, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

webmin / webmin

0 ≤ 2.670

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/webmin/webmin/commit/18cab89b1fc74ab7e8b1b8b90bbccbe5aba99154 github.com: https://github.com/webmin/webmin github.com: https://github.com/webmin/webmin/blob/2.670/samba/samba-lib.pl#L658 vulncheck.com: https://www.vulncheck.com/advisories/webmin-through-2.670-os-command-injection-via-samba-user-account-options

Credits

Sakil Ahamed Gayen Ilia Ross