CRITICAL10.0

GHSA-3m8r-w7xg-jqvw

DNN Insufficient Access Control - Image Upload allows for Site Content Overwrite

Quick fix

GHSA-3m8r-w7xg-jqvw — DNN.PLATFORM: upgrade to the fixed version with the command below.

dotnet add package DNN.PLATFORM --version 10.1.1

Details

### Summary The default HTML editor provider allows unauthenticated file uploads and images can overwrite existing files.

### Description An unauthenticated user can upload and replace existing files allowing defacing a website and combined with other issue, injection XSS payloads.

Are you affected?

Enter the version of the package you're using.

Affected packages

NuGet/DNN.PLATFORM

Introduced in: 0Fixed in: 10.1.1

Fixdotnet add package DNN.PLATFORM --version 10.1.1

References

https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-3m8r-w7xg-jqvw[WEB]
https://nvd.nist.gov/vuln/detail/CVE-2025-64095[ADVISORY]
https://github.com/dnnsoftware/Dnn.Platform[PACKAGE]