---
title: "CVE-2025-64095: DNN Insufficient Access Control - Image Upload allows for Site Content Overwrite"
url: https://erroneo.us/security/cve/CVE-2025-64095/
description: "CVE-2025-64095 (DNN.PLATFORM (NuGet)): DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-10-28
date_modified: 2025-10-29
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-64095"
kev: false
cvss: 10
epss: 0.4697
license: All rights reserved. Quote with attribution and a link.
---

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

**Signal:** High exploit likelihood. EPSS ranks it in the top 5% of all CVEs for likely exploitation in the next 30 days. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 47.0% , percentile 99: FIRST’s model estimates a 47.0% chance of exploitation activity in the next 30 days, higher than 99% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes DNN.PLATFORM (NuGet) < 10.1.1, fixed in 10.1.1 . Check your lockfile, including transitive dependencies.

## What it is

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.

## Affected packages

- NuGet `DNN.PLATFORM` < 10.1.1 → fixed: 10.1.1

## Affected products (CVE record)

- dnnsoftware Dnn.Platform: < 10.1.1

## Severity

- GitHub_M CVSS 3.1: 10 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`
- GitHub CVSS 3.1: 10.0 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 46.97% probability of exploitation activity in the next 30 days; percentile 99.

## Sources

- [GitHub Advisory GHSA-3m8r-w7xg-jqvw](https://github.com/advisories/GHSA-3m8r-w7xg-jqvw)
- [CVE.org record CVE-2025-64095](https://www.cve.org/CVERecord?id=CVE-2025-64095)
- [NVD entry CVE-2025-64095](https://nvd.nist.gov/vuln/detail/CVE-2025-64095)
- [github.com](https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-3m8r-w7xg-jqvw)

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Source page: https://erroneo.us/security/cve/CVE-2025-64095/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt