CVE-2025-64095

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

Published Oct 28, 2025 CVSS 3.1 · 10 Critical EPSS 47.0% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-3m8r-w7xg-jqvw DNN Insufficient Access Control - Image Upload allows for Site Content Overwrite
History
Type Values Removed Values Added
First Time appeared Dnnsoftware dotnetnuke
CPEs cpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*
Vendors & Products Dnnsoftware dotnetnuke
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Dnnsoftware
Dnnsoftware dnn Platform
Vendors & Products Dnnsoftware
Dnnsoftware dnn Platform
Type Values Removed Values Added
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.
Title DNN Insufficient Access Control - Image Upload allows for Site Content Overwrite
Weaknesses CWE-434
References
Metrics cvssV3_1

{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Oct 29, 2025, 2:51 PM
Reserved
Oct 27, 2025, 3:26 PM
Status
Analyzed
Published
Oct 28, 2025, 10:15 PM
Modified
Oct 18, 2026, 9:10 PM