Arbitrary file upload in Dnnsoftware Dnn.platform

CVE-2025-64095

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to 10.1.1, the default HTML editor provider allows unauthenticated file uploads and images can overwrite existing files. An…

Vulnerability class: Unrestricted File Upload

EPSS: 0.202 (95.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-64095?
CVE-2025-64095 is a critical-severity vulnerability in Dnnsoftware Dnn.platform, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 10.0/10. Published 2025-10-28.
How severe is CVE-2025-64095?
Critical severity. CVSS v3 base score is 10.0 out of 10.
Is CVE-2025-64095 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.