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CVE-2025-64095

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

Published: Oct 28, 2025Updated: Nov 3, 2025 Sources: CVE List NVD GHSACWE-434
NVD MITRE
10.0CVSSCRITICAL
EPSS Score
44.2%
Top 1.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-434

Affected Products

Dnn.Platformdnnsoftware
On-premWeb App
Web & CMS Plugins / cms-core
dotnetnukednnsoftware
On-premWeb App
Web & CMS Plugins / cms-core
DNN.PLATFORMNuGetOSS Libraries
dnnsoftwarecommercialWeb & CMS Pluginsaka dotnetnuke, dnn.platform, dnn platform
nugetpackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

3 techniques
Command and Control
Initial Access
Persistence
View detailed technique mapping

References

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

Timeline

Published
Oct 28, 2025
Last Updated
Nov 3, 2025

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