Vulnerability · Published May 21, 2026 · Assigned by VulnCheck

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

Medium 5.4

In plain English

A medium-severity cross-site scripting in Webmin from Webmin. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.2%top 87.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
Webmin	Webmin	0 – before 2.641

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

https://webmin.com/changelog/webmin-2.641-released/ release-notes, patch
https://www.vulncheck.com/advisories/webmin-stored-xss-via-system-and-server-status third-party-advisory