---
id: CVE-2025-59535
title: >-
  DNN (formerly DotNetNuke) is an open-source web content management platform
  (CMS) in the Microsoft ecosystem
summary: >-
  DNN (formerly DotNetNuke) is an open-source web content management platform
  (CMS) in the Microsoft ecosystem. Prior to version 10.1.0, arbitrary themes
  can be loaded through query parameters. If an installed theme had a
  vulnerability, ev…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L'
cwe:
  - CWE-20
  - CWE-200
  - CWE-829
vendor: dnnsoftware
product: dotnetnuke
affected:
  - dotnetnuke < 10.1.0
patched:
  - dotnetnuke 10.1.0
published: '2025-09-22'
updated: '2026-10-11'
sourceUpdated: '2026-10-11T20:10:00.200'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-59535'
references:
  - url: >-
      https://github.com/dnnsoftware/Dnn.Platform/blob/develop/DNN%20Platform/Library/UI/Skins/Skin.cs#L305
    label: security-advisories@github.com
  - url: >-
      https://github.com/dnnsoftware/Dnn.Platform/commit/72f30f69fd2214d77f6c2577dfcca495a24caf5c
    label: security-advisories@github.com
  - url: >-
      https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-wq2j-w9pm-7x2p
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00428
epssPercentile: 0.35175
ingestedAt: '2026-10-12T14:50:33.969Z'
---

## Overview

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.1.0, arbitrary themes can be loaded through query parameters. If an installed theme had a vulnerability, even if it was not used on any page, this could be loaded on unsuspecting clients without knowledge of the site owner. This issue has been patched in version 10.1.0.

## Affected

- `dotnetnuke < 10.1.0`

## Remediation

Upgrade past the affected range:

- `dotnetnuke 10.1.0`