CVE-2026-40321
HIGH
NVD
CVSS Score
8
Severity
HIGH
Published
Apr 17, 2026
Vendor
unknown
Description
DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.2.2, a user could upload a specially crafted SVG file that could include scripts that can target both authenticated and unauthenticated DNN users. The impact is increased if the scripts are run by a power user. Version 10.2.2 patches the issue.