CVE-2026-40321: DotNetNuke.Core has stored cross-site-scripting (XSS) via SVG upload
dnnsoftware · Dnn.Platform
Affected: dnnsoftware Dnn.Platform · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 93% of scored CVEs
DescriptionCVE.org
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 products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- dnnsoftware · Dnn.Platform< 10.2.2
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- dnnsoftware
- Published
- April 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-40321 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.