CVE-2025-59535 DotNetNuke.Core allows loading of unused themes on anonymous clients through query parameters
Attackers can force loading of unused themes via query parameters, potentially exposing vulnerabilities in inactive components to anonymous users.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-59535?
CVE-2025-59535 is a medium-severity vulnerability in Dnnsoftware Dotnetnuke, published on 22 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.1.0, arbitrary themes can be loaded through query parameters. If an installed theme had a vulnerability, even if it was not used on any page, this could be loaded on unsuspecting clients without knowledge of the site owner. This issue has been patched in version 10.1.0.
Which versions are affected by CVE-2025-59535?
2 open source packages ship an affected version, including DotNetNuke.Core. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
DotNetNuke.Core NuGet | All versions | 10.1.0 |
DotNetNuke.Core NuGet | All versions | 10.1.0 |
Products include Dnnsoftware Dotnetnuke.
How do I fix CVE-2025-59535?
Upgrade DotNetNuke.Core to 10.1.0 or later.
Is CVE-2025-59535 being exploited?
There is no known exploitation of CVE-2025-59535 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-wq2j-w9pm-7x2p.