CVE-2025-59821

Medium

Description

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.1.0, DNN’s URL/path handling and template rendering can allow specially crafted input to be reflected into a user profile that is returned to the browser. In these cases, the application does not sufficiently neutralize or encode characters that are meaningful in HTML, so an attacker can cause a victim’s browser to interpret attacker-controlled content as part of the page’s HTML. This issue has been patched in version 10.1.0.

SeverityMedium
CVSS6.5
Exploit probability—
ProductDnnsoftware Dotnetnuke
PublishedSep 23, 2025
First seenSep 23, 2025

How to fix

Update
  • dnnsoftware dotnetnuke10.1.0 or later
  • DotNetNuke.Core10.1.0 or later

Affected products

ProductAffected versionsFixed in
dnnsoftware dotnetnukev < 10.1.010.1.0
DotNetNuke.CoreNuGetv < 10.1.010.1.0

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