CVE-2025-59535 MEDIUM

CVE-2025-59535: DotNetNuke.Core allows loading of unused themes on anonymous clients through query parameters

Vendor Dnnsoftware
Product Dnn.Platform
Weakness CWE-20 · Input validation
Published September 22, 2025
Last update September 23, 2025
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

September 22, 2025 CVE published
September 23, 2025 Record updated