GHSA-ffq7-898w-9jc4

DotNetNuke.Core has stored cross-site-scripting (XSS) via SVG upload

Source: GitHub Advisory Database (reviewed) High CVE-2026-40321

Packages

Ecosystem	Package	Affected	Fixed in
NuGet	DotNetNuke.Core	< 10.2.2	10.2.2

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.

https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-ffq7-898w-9jc4 web
https://nvd.nist.gov/vuln/detail/CVE-2026-40321 advisory
https://github.com/dnnsoftware/Dnn.Platform package
https://github.com/dnnsoftware/Dnn.Platform/releases/tag/v10.2.2 web