CVE-2026-49243
criticalWebmin is a web-based system administration tool for Unix-like servers.
Webmin is a web-based system administration tool for Unix-like servers. Prior to version 2.650, Webmin users who click on a malicious link to their server are vulnerable to this XSS vulnerability that could be used to execute attacker-controlled commands. This issue has been patched in version 2.650.
CVSS
9.6
9.6 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (security-advisories@github.com)
Timeline (UTC)
Published: 2026-09-29 15:17
Modified: 2026-10-13 15:17
NVD status: Deferred
Last synced 2 days ago
Verified against the source API 2026-10-27 06:56 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://beaksec.github.io/posts/webmin-one-click-rce-via-xss security-advisories@github.com
- https://github.com/webmin/webmin/commit/2d016751399ed0f4159e72a6cbcd63694a84dabf security-advisories@github.com
- https://github.com/webmin/webmin/releases/tag/2.650 security-advisories@github.com
- https://github.com/webmin/webmin/security/advisories/GHSA-hv4w-p8jq-2rp5 security-advisories@github.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:56 UTC · record ↗