dnnsoftware/dnn.platform · Security
DotNetNuke.Core has stored cross-site-scripting (XSS) via SVG upload
- GHSA ID
- GHSA-ffq7-898w-9jc4
- CVE ID
- CVE-2026-40321
- Severity
- high
- Published
- Updated
- CVSS
- 8 · CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
- CVSS v3
- 8 · CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
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.
CWEs
- CWE-87 · Improper Neutralization of Alternate XSS Syntax