What’s Vulnerable › Vulnerabilities
CVE-2025-52485: DNN.PLATFORM Allows Stored Cross-Site Scripting (XSS) in Activity Feed
- Severity: medium (CVSS 5.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-06-21 · updated 2026-06-17
- Weakness: CWE-79
Description
DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. In versions 6.0.0 to before 10.0.1, DNN.PLATFORM allows a specially crafted request to inject scripts in the Activity Feed Attachments endpoint which will then render in the feed. This issue has been patched in version 10.0.1.
Affected products
- DotNetNuke CMS Fixed in 9.1.1: from 6.0.0 before 10.0.1 — fixed in 10.0.1
How to fix
Upgrade to a fixed version: DotNetNuke CMS Fixed in 9.1.1 10.0.1. Check the vendor advisory for mitigations.
References
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