CVE-2025-52485 DNN.PLATFORM Allows Stored Cross-Site Scripting (XSS) in Activity Feed
Attackers can inject malicious scripts into the Activity Feed, potentially leading to code execution or account takeover in DNN Platform.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-52485?
CVE-2025-52485 is a medium-severity cross-site scripting vulnerability in Dnnsoftware Dotnetnuke, published on 21 Jun 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2025-52485?
2 open source packages ship an affected version, including DNN.PLATFORM. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
DNN.PLATFORM NuGet | From 6.0.0 | 10.0.1 |
DNN.PLATFORM NuGet | From 6.0.0 | 10.0.1 |
Products include Dnnsoftware Dotnetnuke.
How do I fix CVE-2025-52485?
Upgrade DNN.PLATFORM to 10.0.1 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-52485 being exploited?
There is no known exploitation of CVE-2025-52485 in the wild and no public exploit code.
Other vulnerabilities in Dnnsoftware Dotnetnuke
- CVE-2017-9822 DotNetNuke (DNN) Remote Code Execution
- CVE-2018-15811 DotNetNuke (DNN) Inadequate Encryption Strength
- CVE-2018-18325 DotNetNuke (DNN) Inadequate Encryption Strength
- CVE-2025-64095 DNN Insufficient Access Control - Image Upload allows for Site Content Overwrite
- CVE-2006-3601 Privilege escalation in n/a
Sources
Also known as GHSA-wwc9-wmm3-2pmf.