PT-2026-44030 · Webmin · Webmin

Published 2026-05-27 · Updated 2026-05-27 · CVE-2026-49102

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Webmin versions prior to 2.640

Description Cross-site Scripting (XSS) is possible via an SVG document attachment viewed in the mailboxes component. This occurs because the application uses the image/svg+xml content type instead of a safe type such as text/plain when processing the 'mailboxes/detach.cgi' endpoint.

Recommendations Update to version 2.640 or later.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-49102

Affected Products

Webmin

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-49102 · Security Note
• https://github.com/webmin/webmin/compare/2.630...2.640 · Note
• https://github.com/webmin/webmin/commit/cf432879a14568c4bb44cd2f9e5a9bd0e168edc1 · Note
• https://t.me/CVEtracker/55142 · Telegram Post