CVE-2026-22678 Webmin < 2.641 Stored XSS via System and Server Status

What is CVE-2026-22678?

CVE-2026-22678 is a medium-severity cross-site scripting vulnerability in Webmin Webmin, published on 21 May 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Webmin before 2.641 contains a stored cross-site scripting vulnerability in the email template description field of the System and Server Status module that allows low-privileged authenticated attackers to execute arbitrary JavaScript in the browser context of administrators by injecting unsanitized input stored in save_tmpl.cgi and rendered unescaped in list_tmpls.cgi.

Weakness: CWE-79

Which versions are affected by CVE-2026-22678?

It affects 1 product.

Products include Webmin Webmin.

How do I fix CVE-2026-22678?

No fix has been published for CVE-2026-22678 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-22678 being exploited?

There is no known exploitation of CVE-2026-22678 in the wild and no public exploit code.

Other vulnerabilities in Webmin Webmin

• CVE-2019-15107 Webmin Command Injection Exploited Critical 9.8
• CVE-2002-2201 Command injection in n/a Critical 10.0
• CVE-2001-1196 Path traversal in n/a Critical 10.0
• CVE-2024-12828 Webmin CGI Command Injection Remote Code Execution Vulnerability Critical 9.9
• CVE-2022-36446 Cross-site scripting in n/a Critical 9.8

All Webmin Webmin vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-vxwv-pg73-pf78.