# CVE-2025-62802: DNN CKEditor Provider allows unauthenticated upload out-of-the-box

> Unauthenticated users can upload files in DNN CMS out-of-the-box, potentially leading to code execution or further security breaches.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 28 Oct 2025
- **Updated:** 29 Oct 2025
- **Also known as:** GHSA-2374-6cvw-qmx6

## What is CVE-2025-62802?

CVE-2025-62802 is a medium-severity vulnerability in Dnnsoftware Dotnetnuke, published on 28 Oct 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to 10.1.1, the out-of-box experience for HTML editing allows unauthenticated users to upload files. This opens a potential vector to other security issues and is not needed on most implementations. This vulnerability is fixed in 10.1.1.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type), CWE-1188 (Initialization of a Resource with an Insecure Default)

## Which versions are affected by CVE-2025-62802?

2 open source packages ship an affected version, including Dnn.Platform. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `Dnn.Platform` | NuGet | All versions | 10.1.1 |
| `Dnn.Platform` | NuGet | All versions | 10.1.1 |

Products: Dnnsoftware Dotnetnuke.

## How do I fix CVE-2025-62802?

Upgrade Dnn.Platform to 10.1.1 or later.

## Is CVE-2025-62802 being exploited?

There is no known exploitation of CVE-2025-62802 in the wild and no public exploit code.

## Other vulnerabilities in Dnnsoftware Dotnetnuke

- [CVE-2017-9822](https://insights.sbomify.com/CVE-2017-9822/): DotNetNuke (DNN) Remote Code Execution (high 8.8, exploited in the wild)
- [CVE-2018-15811](https://insights.sbomify.com/CVE-2018-15811/): DotNetNuke (DNN) Inadequate Encryption Strength (high 7.5, exploited in the wild)
- [CVE-2018-18325](https://insights.sbomify.com/CVE-2018-18325/): DotNetNuke (DNN) Inadequate Encryption Strength (high 7.5, exploited in the wild)
- [CVE-2025-64095](https://insights.sbomify.com/CVE-2025-64095/): DNN Insufficient Access Control - Image Upload allows for Site Content Overwrite (critical 10.0)
- [CVE-2006-3601](https://insights.sbomify.com/CVE-2006-3601/): Privilege escalation in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-62802 and fix it if it is affected.

What it is: CVE-2025-62802 is a medium-severity vulnerability in Dnnsoftware Dotnetnuke, published on 28 Oct 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-62802 in the wild and no public exploit code.

Affected packages and fixed versions:
- Dnn.Platform (NuGet): affected all versions; fixed in 10.1.1
- Dnn.Platform (NuGet): affected all versions; fixed in 10.1.1

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-62802/ (Markdown: https://insights.sbomify.com/CVE-2025-62802/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-62802
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-62802
- OSV: https://osv.dev/vulnerability/CVE-2025-62802

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-62802/
Summaries are generated and may contain mistakes; the official description above is the record.