CVE-2025-59547CWE-176

CVE-2025-59547

Medium · published September 23, 2025

CVSS v3.1
5.3
EPSS
0%
Percentile
16.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00261 · 16.9th percentile
Weakness
CWE-176 · Improper Handling of Unicode Encoding
Published
2025-09-23T22:15Z
Affected products (1)
ProductVersionsFixed in
dnnsoftware/dotnetnuke< 10.1.010.1.0
References (1)
https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-cgqj-mw4m-v7hp · [email protected]
EPSS history
Timeline
  • 23 SEP 17:56Z
    DNN's CKEditor File Uploader functionality vulnerable through Unicode obfuscation
    cvelistv5