What is CVE-2025-59547?

CVE-2025-59547 is a medium-severity vulnerability in Dnnsoftware Dnn.platform, classified under CWE-176. CVSS score: 5.3/10. Published 2025-09-23.

How severe is CVE-2025-59547?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Dnnsoftware Dnn.platform

CVE-2025-59547

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.

EPSS: 0.003 (17.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Dnnsoftware Dnn.platform — versions < 10.1.0
Dnnsoftware Dotnetnuke

Weakness classification (CWE)

CWE-176

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2025-59547?: CVE-2025-59547 is a medium-severity vulnerability in Dnnsoftware Dnn.platform, classified under CWE-176. CVSS score: 5.3/10. Published 2025-09-23.
How severe is CVE-2025-59547?: Medium severity. CVSS v3 base score is 5.3 out of 10.