CVE-2023-52269: MDaemon Securitygateway

Medium severity, CVSS 4.8. EPSS: 0.4% chance of exploitation in the next 30 days.

MDaemon SecurityGateway through 9.0.3 allows XSS via a crafted Message Content Filtering rule. This might allow domain administrators to conduct attacks against global administrators.

Affected products

• MDaemon Securitygateway: up to and including 9.0.3

Published 2023-12-31. Last modified 2026-06-17.