CVE-2025-64095
10.0
CRITICAL · CVSS 3.1 · EPSS 47% (pctl 99)
Patch early
EPSS 47% — above the 10% action threshold.
Description
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 unauthenticated user can upload and replace existing files allowing defacing a website and combined with other issue, injection XSS payloads. This vulnerability is fixed in 10.1.1.
Scoring
| CVSS | 10.0 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| EPSS | 46.97% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-434 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2025-10-28 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| dnnsoftware | dotnetnuke |
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