High severity8.0NVD Advisory· Published Apr 17, 2026· Updated Apr 24, 2026
CVE-2026-40321
CVE-2026-40321
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
DotNetNuke.CoreNuGet | < 10.2.2 | 10.2.2 |
Affected products
2Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-ffq7-898w-9jc4ghsaADVISORY
- github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-ffq7-898w-9jc4nvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-40321ghsaADVISORY
- github.com/dnnsoftware/Dnn.Platform/releases/tag/v10.2.2nvdRelease NotesWEB
News mentions
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