CVE-2026-24836: Dnnsoftware DotNetNuke

Medium severity, CVSS 5.4. EPSS: 0.3% chance of exploitation in the next 30 days.

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Starting in version 9.0.0 and prior to versions 9.13.10 and 10.2.0, extensions could write richtext in log notes which can include scripts that would run in the PersonaBar when displayed. Versions 9.13.10 and 10.2.0 contain a fix for the issue.

Affected products

• Dnnsoftware DotNetNuke: from 9.0.0, before 9.13.10 (fixed in 9.13.10); from 10.0.0, before 10.2.0 (fixed in 10.2.0)

Published 2026-01-28. Last modified 2026-06-17.