CVE-2025-64095Dotnetnuke Unrestricted File Upload
DNN Insufficient Access Control - Image Upload allows for Site Content Overwrite
Published Oct 29, 2025 · Updated Oct 21, 2026 · Also known as GHSA-3m8r-w7xg-jqvw
Key Facts
Patch immediately- CVE-2025-64095 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Dotnetnuke (Dnnsoftware), DNN.PLATFORM (nuget).
- It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Oct 28, 2025. No public exploit code is known.
- EPSS estimates a 47% probability of exploitation in the next 30 days.
- Fixed versions are available, including DNN.PLATFORM 10.1.1, Dotnetnuke 10.1.1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Scores
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
47%
Higher than 98.8% of all scored CVEs
Exploit maturity
Exploited (KEV)
ATLAS score
58/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Oct 28, 2025
-1 days after publication
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Exploited (KEV)
Public exploit code
0
Proof-of-concept links
In-the-wild evidence
10
Reports of active use
Advisories And Exploit References
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CIRCL KEV | Oct 28, 2025 | n/a | Not reported |
| Industry KEV feed | Oct 28, 2025 | n/a | Not reported |
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| DotnetnukeDnnsoftware | See advisory | 10.1.1 |
| DNN.PLATFORMnuget | < 10.1.1 | 10.1.1 |
Patched Releases
DNN.PLATFORM
10.1.1
Dotnetnuke
10.1.1
Timeline
Added to CIRCL KEV
Oct 28, 2025
Added to Industry KEV feed
Oct 28, 2025
Publicly disclosed
Oct 29, 2025
Last updated
Oct 21, 2026
Weakness Type
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
- advisorycve.org · CVERecord
- advisorynvd.nist.gov · CVE-2025-64095
- advisoryGHSA advisory
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem.
Affected: Dotnetnuke (Dnnsoftware); DNN.PLATFORM (nuget) versions < 10.1.1. The full list is in the CVE brief.
It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Oct 28, 2025.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including DNN.PLATFORM 10.1.1, Dotnetnuke 10.1.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2025-64095 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
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