GitHub Advisoryadvisory · NuGet

GHSA-ffq7-898w-9jc4 DotNetNuke.Core has stored cross-site-scripting (XSS) via SVG upload

HIGH Published 2026-04-10 Modified 2026-04-24 Official page ↗
Aliases
CVE-2026-40321
Ecosystem
NuGet
Packages
DotNetNuke.Core
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
Weaknesses
CWE-87
Reviewed
2026-04-10

Affected packages

• NuGet DotNetNuke.Core: < 10.2.2 → fixed in 10.2.2

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.

Related

Alias · CVE (1)

  • CVE-2026-40321 DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. vulnerability

Weakness · CWE (1)

  • CWE-87 Improper Neutralization of Alternate XSS Syntax weakness

References