Vulnerability DatabaseCVE-2026-125391
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CVE-2026-125391
Published:November 09, 2026
Updated:November 10, 2026
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.
Related Resources (6)
https://github.com/webmin/webmin
https://github.com/webmin/webmin/commit/18cab89b1fc74ab7e8b1b8b90bbccbe5aba99154
https://github.com/webmin/webmin/blob/2.670/samba/samba-lib.pl#L658
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/125xxx/CVE-2026-125391.json
https://nvd.nist.gov/vuln/detail/CVE-2026-125391
https://www.vulncheck.com/advisories/webmin-through-2.670-os-command-injection-via-samba-user-account-options
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CVSS v4
Base Score:
8.6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.2
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Neutralization of Special Elements used in an OS Command
CWE-78