CVE-2026-49243: XSS

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.

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Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

References

Other References

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

Frequently Asked Questions

What is CVE-2026-49243? +

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.

How do I check if I'm vulnerable to CVE-2026-49243? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-49243