Stored XSS in Webmin System and Server Status Module

Publication date: 2026-05-21

Last updated on: 2026-05-26

Assigner: VulnCheck

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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-05-21

Last Modified

2026-05-26

Generated

2026-07-02

AI Q&A

2026-05-22

EPSS Evaluated

2026-06-30

NVD

CVE-2026-22678

EUVD

EUVD-2026-31350

Affected Vendors & Products

Vendor	Product	Version / Range
webmin	webmin	to 2.641 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

This vulnerability exists in Webmin versions before 2.641 and is a stored cross-site scripting (XSS) issue. It occurs in the email template description field of the System and Server Status module. Low-privileged authenticated attackers can exploit this by injecting unsanitized input into the save_tmpl.cgi script, which is then stored and later rendered without proper escaping in list_tmpls.cgi, allowing the execution of arbitrary commands.

Impact Analysis

The impact of this vulnerability is that an attacker with low privileges who is authenticated can execute arbitrary commands on the affected system. This can lead to unauthorized actions being performed, potentially compromising the integrity and security of the system.

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