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VULNERABILITIES

CVE-2026-40321 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:8 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/dnnsoftware/Dnn.Platform/releases/tag/v10.2.2 [email protected]Release Notes
https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-ffq7-898w-9jc4 [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-87Improper Neutralization of Alternate XSS Syntax[email protected]

Affected Products

ProductVersions
dnnsoftware dotnetnuke
< 10.2.2

CPE

  • cpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-40321
NVD Published Date:
Apr 17, 2026
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]