CVE-2025-52487 DNN.PLATFORM possibly allows bypass of IP Filters

High 8.8 Published Updated

Attackers can bypass IP filters to attempt logins from unauthorized addresses, requiring administrators to patch the DNN platform.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2025-52487?

CVE-2025-52487 is a high-severity authentication bypass vulnerability in Dnnsoftware Dotnetnuke, published on 21 Jun 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. In versions 7.0.0 to before 10.0.1, DNN.PLATFORM allows a specially crafted request or proxy to be created that could bypass the design of DNN Login IP Filters allowing login attempts from IP Addresses not in the allow list. This issue has been patched in version 10.0.1.

Weakness: CWE-863

Which versions are affected by CVE-2025-52487?

2 open source packages ship an affected version, including DNN.PLATFORM. It affects 1 product.

PackageAffectedFixed in
DNN.PLATFORM NuGetFrom 7.0.010.0.1
DNN.PLATFORM NuGetFrom 7.0.010.0.1

Products include Dnnsoftware Dotnetnuke.

How do I fix CVE-2025-52487?

Upgrade DNN.PLATFORM to 10.0.1 or later.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2025-52487 being exploited?

There is no known exploitation of CVE-2025-52487 in the wild and no public exploit code.

All Dnnsoftware Dotnetnuke vulnerabilities

Sources

Also known as GHSA-fjhg-3mrh-mm7h.

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