CVE-2025-64095: DNN Insufficient Access Control - Image Upload allows for Site Content Overwrite

CVE-2025-64095 · Severity: critical · CVSS 10 · Published 2025-10-28

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to 10.1.1, the default HTML editor provider allows unauthenticated file uploads and images can overwrite existing files. An unauthenticated user can upload and replace existing files allowing defacing a website and combined with other issue, injection XSS payloads. This vulnerability is fixed in 10.1.1.

Technologies: Dnnsoftware Dotnetnuke, Dnn.Platform (NuGet). Vendors: Dnnsoftware, NuGet.

Quick answers

Is CVE-2025-64095 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-64095 being exploited in the wild.
How severe is CVE-2025-64095?
Critical severity, with a CVSS score of 10, published 28 October 2025.
Which products and versions are affected?
Dnn.Platform (NuGet) ECOSYSTEM:introduced=0,fixed=10.1.1.
Is there a fix for CVE-2025-64095?
Yes. Dnn.Platform (NuGet): upgrade to 10.1.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-64095?
Check whether you run Dnnsoftware Dotnetnuke or Dnn.Platform (NuGet) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Dnn.Platform (NuGet): upgrade to 10.1.1 or later
    dotnet add package Dnn.Platform --version 10.1.1

Affected products

  • Dnnsoftware Dotnetnuke
  • Dnn.Platform (NuGet) ECOSYSTEM:introduced=0,fixed=10.1.1

Identifiers

  • CVE-2025-64095
  • GHSA-3m8r-w7xg-jqvw

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