CVE-2025-59547

MediumCVSS 5.3/10Last modified Oct 11, 2026

Description

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.1.0, the CKEditor file upload endpoint has insufficient sanitization for filenames allowing probing network endpoints. A specially crafted request can be made to upload a file with Unicode characters, which would be translated into a path that could expose resources in the internal network of the hosted site. This issue has been patched in version 10.1.0.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-176

Affected software

No affected versions have been published.

Timeline

Published
Sep 23, 2025
Last modified
Oct 11, 2026
NVD status
Analyzed

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CVE-2025-59547: Medium severity, CVSS 5.3 | Vulnix