CVE-2023-40986: Webmin

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

A stored cross-site scripting (XSS) vulnerability in the Usermin Configuration function of Webmin v2.100 allows attackers to execute arbitrary web sripts or HTML via a crafted payload injected into the Custom field.

Affected products

• Webmin Webmin: version 2.100 only

Published 2023-09-15. Last modified 2026-07-09.