CVE-2026-124552 Webmin through 2.670 Stored XSS via Shorewall and Shorewall6 list.cgi

Medium 4.8 Published Updated
Exploited in the wild
Not known
Fix
None listed

What is CVE-2026-124552?

CVE-2026-124552 is a medium-severity vulnerability in webmin, published on 8 Nov 2026.

Official description

Webmin through 2.670 contains a stored cross-site scripting vulnerability in the Shorewall and Shorewall6 modules' list.cgi, which renders table fields and COMMENT lines unescaped. Authenticated users with table edit permission can store JavaScript via savecmt.cgi or table entries that executes when other users, including root, view the list page.

Weakness: CWE-79

Which versions are affected by CVE-2026-124552?

How do I fix CVE-2026-124552?

No fix has been published for CVE-2026-124552 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-124552 being exploited?

There is no known exploitation of CVE-2026-124552 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-6qcf-4v5f-2vjx.

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