# CVE-2025-59548: DNN Vulnerable to Reflected Cross-Site Scripting (XSS) in CKEditor File Browser

> Attackers can inject JavaScript via crafted URLs in the CKEditor File Browser, potentially compromising user sessions in DNN CMS.

- **Severity:** Medium 5.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 23 Sep 2025
- **Updated:** 23 Sep 2025
- **Also known as:** GHSA-5fj9-542v-w4rq

## What is CVE-2025-59548?

CVE-2025-59548 is a medium-severity cross-site scripting vulnerability in Dnnsoftware Dotnetnuke, published on 23 Sep 2025. An attacker needs administrator access to exploit it, 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 version 10.1.0, specially crafted URLs to the FileBrowser are vulnerable to javascript injection, affecting any unsuspecting user clicking such link. This issue has been patched in version 10.1.0.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2025-59548?

It affects 1 product.


Products: Dnnsoftware Dotnetnuke.

## How do I fix CVE-2025-59548?

No fix has been published for CVE-2025-59548 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-59548 being exploited?

There is no known exploitation of CVE-2025-59548 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-2025-59548 and fix it if it is affected.

What it is: CVE-2025-59548 is a medium-severity cross-site scripting vulnerability in Dnnsoftware Dotnetnuke, published on 23 Sep 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-59548 in the wild and no public exploit code.

Affected product: Dnnsoftware Dotnetnuke. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2025-59548/ (Markdown: https://insights.sbomify.com/CVE-2025-59548/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-59548
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-59548
- OSV: https://osv.dev/vulnerability/CVE-2025-59548

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-59548/
Summaries are generated and may contain mistakes; the official description above is the record.