How severe is CVE-2025-64095?

CVE-2025-64095 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-64095 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 45% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-64095?

CVE-2025-64095 affects Dnnsoftware Dotnetnuke. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-64095?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-64095 have an EU (EUVD) identifier?

Yes. CVE-2025-64095 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-36564.

When was CVE-2025-64095 published?

CVE-2025-64095 was published on 2025-10-28 and last updated on 2026-06-17.

CVE-2025-64095

CVE-2025-64095 is a critical-severity vulnerability in Dnnsoftware Dotnetnuke with a CVSS 3.x base score of 10.0. Its EPSS exploit-prediction score of 45% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-434.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
EPSS exploit prediction: 45% (99th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-36564
Weakness: CWE-434
Affected product: Dnnsoftware Dotnetnuke
Published: 2025-10-28
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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 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.
How severe is CVE-2025-64095?: CVE-2025-64095 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-64095 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 45% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-64095?: CVE-2025-64095 affects Dnnsoftware Dotnetnuke. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-64095?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-64095 have an EU (EUVD) identifier?: Yes. CVE-2025-64095 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-36564.
When was CVE-2025-64095 published?: CVE-2025-64095 was published on 2025-10-28 and last updated on 2026-06-17.

References

https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-3m8r-w7xg-jqvw

Affected products (1)

cpe:2.3:a:dnnsoftware:dotnetnuke:*:*:*:*:*:*:*:*

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