THREATPORT/VULNERABILITY/CVE-2025-64095
CRITICAL SEVERITY

CVE-2025-64095

Dotnetnuke vulnerability

CVSS
10.0
EPSS
44.7%
EPSS pct
99th
Exploited
No known
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.
Affected vendor
Dnnsoftware
Affected product
Dotnetnuke
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-434 — Unrestricted Upload of File with Dangerous Type
Published
2025-10-28

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 44.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it among the most exploited CVEs currently tracked.

Check your external exposure to CVE-2025-64095

  • Confirm whether Dnnsoftware Dotnetnuke is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2025-64095.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2025-64095

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2025-64095 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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