CVE-2025-52485: Dnnsoftware DotNetNuke

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. In versions 6.0.0 to before 10.0.1, DNN.PLATFORM allows a specially crafted request to inject scripts in the Activity Feed Attachments endpoint which will then render in the feed. This issue has been patched in version 10.0.1.

Affected products

• Dnnsoftware DotNetNuke: from 6.0.0, before 10.0.1 (fixed in 10.0.1)

Published 2025-06-21. Last modified 2026-06-17.