CVE-2026-40321
HIGHDNN Platform < 10.2.2 - SVG Upload Stored Cross-Site Scripting
Title source: manualDescription
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 (2)
Core 2
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-ffq7-898w-9jc4
X_Refsource_Misc x_refsource_misc
https://github.com/dnnsoftware/Dnn.Platform/releases/tag/v10.2.2
Scores
CVSS v3
8.0
EPSS
0.0002
EPSS Percentile
6.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-87
Status
published
Products (2)
dnnsoftware/Dnn.Platform
< 10.2.2
nuget/DotNetNuke.Core
0 - 10.2.2NuGet
Published
Apr 17, 2026
Tracked Since
Apr 18, 2026