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Description

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.

PUBLISHED Reserved 2025-10-27 | Published 2025-10-28 | Updated 2025-10-29 | Assigner GitHub_M




CRITICAL: 10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Problem types

CWE-434: Unrestricted Upload of File with Dangerous Type

Product status

< 10.1.1
affected

References

github.com/...atform/security/advisories/GHSA-3m8r-w7xg-jqvw

cve.org (CVE-2025-64095)

nvd.nist.gov (CVE-2025-64095)

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