CVE-2025-52486 DNN.PLATFORM Allows Reflected Cross-Site Scripting (XSS) in some TokenReplace situations with SkinObjects
Attackers can execute arbitrary scripts in victim browsers via unsanitized URL tokens in DNN Platform, potentially leading to session hijacking or data theft.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-52486?
CVE-2025-52486 is a medium-severity cross-site scripting vulnerability in Dnnsoftware Dotnetnuke, published on 21 Jun 2025. An attacker can exploit it over the internet without logging in, 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 specially crafted content in URLs to be used with TokenReplace and not be properly sanitized by some SkinObjects. This issue has been patched in version 10.0.1.
Weakness: CWE-79
Which versions are affected by CVE-2025-52486?
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-2025-52486?
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-2025-52486 being exploited?
There is no known exploitation of CVE-2025-52486 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-pf4h-vrv6-cmvr.