CVE-2025-59545: Dnnsoftware DotNetNuke

Critical severity, CVSS 9.0. EPSS: 0.5% chance of exploitation in the next 30 days.

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.1.0, the Prompt module allows execution of commands that can return raw HTML. Malicious input, even if sanitized for display elsewhere, can be executed when processed through certain commands, leading to potential script execution (XSS). This issue has been patched in version 10.1.0.

Affected products

• Dnnsoftware DotNetNuke: before 10.1.0 (fixed in 10.1.0)

Published 2025-09-23. Last modified 2026-06-17.