Back
CVE-2026-49243
Webmin: Reflected XSS in the Configuration module
Critical9.6EPSS 0.30%
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Critical9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | Critical9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.30% · top 78% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.6.
Weakness
Affected products
References (4)
- https://github.com/webmin/webmin/security/advisories/GHSA-hv4w-p8jq-2rp5 (opens in a new tab)x_refsource_CONFIRM
- https://github.com/webmin/webmin/commit/2d016751399ed0f4159e72a6cbcd63694a84dabf (opens in a new tab)x_refsource_MISC
- https://beaksec.github.io/posts/webmin-one-click-rce-via-xss (opens in a new tab)x_refsource_MISC
- https://github.com/webmin/webmin/releases/tag/2.650 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-49243)Record last updated .