CVE-2026-49243

critical · 9.6

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.

9.6

CVSS

0.3%

EPSS (exploit prob.)

22nd

EPSS percentile

2026-09-29

Published

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

Weaknesses

CWE-79

References

https://beaksec.github.io/posts/webmin-one-click-rce-via-xss
https://github.com/webmin/webmin/commit/2d016751399ed0f4159e72a6cbcd63694a84dabf
https://github.com/webmin/webmin/releases/tag/2.650
https://github.com/webmin/webmin/security/advisories/GHSA-hv4w-p8jq-2rp5

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-49243