CVE-2026-40321
HIGH8.0EPSS 0.02%DotNetNuke.Core has stored cross-site-scripting (XSS) via SVG upload
Published: 4/10/2026Modified: 5/5/2026
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.
Affected packages (1)
- NuGet/DotNetNuke.Corefrom 0, < 10.2.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.0 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H |