What is CVE-2025-59539?

CVE-2025-59539 is a medium-severity vulnerability in Dnnsoftware Dnn.platform, classified under Cross-site Scripting. CVSS score: 6.3/10. Published 2025-09-23.

How severe is CVE-2025-59539?

Medium severity. CVSS v3 base score is 6.3 out of 10.

XSS in Dnnsoftware Dnn.platform

CVE-2025-59539

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.1.0, when embedding information in the Biography field, even if that field is not rich-text, users could inje…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (8.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Dnnsoftware Dnn.platform — versions < 10.1.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-7rcc-q6rq-jpcm (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2025-59539?: CVE-2025-59539 is a medium-severity vulnerability in Dnnsoftware Dnn.platform, classified under Cross-site Scripting. CVSS score: 6.3/10. Published 2025-09-23.
How severe is CVE-2025-59539?: Medium severity. CVSS v3 base score is 6.3 out of 10.