GHSA-3m8r-w7xg-jqvw

ghsaUSosv

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

view advisory published 2025-10-29Licence: CC-BY-4.0

### 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.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2025-64095US	critical9.8	47.0% (99th)	Exploit	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 unauthenticat…

references

External citations — patches, advisories, analysis.

https://github.com/dnnsoftware/Dnn.PlatformPACKAGE
https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-3m8r-w7xg-jqvwWEB
https://nvd.nist.gov/vuln/detail/CVE-2025-64095ADVISORY

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