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CVE-2026-49243.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSCRITICAL / 9.6CVSS 3.1 · security-advisories@github.com
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSDeferredModified Oct 09, 2026

Disclosure summary

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.

Source-reported weakness categories

CWE-79

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

NIST National Vulnerability Database · NVD-CVE-2026-49243

Open original source · Updated Oct 09, 2026

Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.

Original records & references

PUBLISHED 2026-09-29T11:17:26-04:00
MODIFIED 2026-10-09T11:17:14-04:00
INGESTED 2026-10-10T20:50:44-04:00