CVE-2025-64095 CRITICAL

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

Vendor Dnnsoftware
Product Dnn.Platform
Weakness CWE-434 · Unrestricted file upload
Published October 28, 2025
Last update October 29, 2025
View on NVD All CVEs

CVSS base score

10.0/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

October 28, 2025 CVE published
October 29, 2025 Record updated

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04Related CVE

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