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CVE-2026-49102

Medium

Description

Webmin before 2.640 allows mailboxes/detach.cgi XSS via an SVG document attachment that is viewed in the mailboxes component, because image/svg+xml is used instead of a safe type (e.g., text/plain).

SeverityMedium
CVSS6.1
Exploit probability—
ProductWebmin
PublishedMay 27, 2026
First seenMay 27, 2026
Weakness typeCWE-79Cross-site scripting (XSS)

How to fix

Update
  • Webmin Webmin2.640 or later

Affected products

ProductAffected versionsFixed in
Webmin Webminv < 2.6402.640

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