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.

INFO

Published Date :

2026-04-17T21:10:33.192Z

Last Modified :

2026-04-22T03:55:44.141Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-40321 vulnerability.

Vendors Products
Dnnsoftware
  • Dnn Platform
  • Dotnetnuke
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-40321.

URL Resource
https://github.com/dnnsoftware/Dnn.Platform/releases/tag/v10.2.2 cve-icon cve-icon
https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-ffq7-898w-9jc4 cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact