What’s Vulnerable › Vulnerabilities

CVE-2025-52486: DNN.PLATFORM Allows Reflected Cross-Site Scripting (XSS) in some TokenReplace situations with SkinObjects

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-06-21 · updated 2026-06-17
• Weakness: CWE-79

Description

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. In versions 6.0.0 to before 10.0.1, DNN.PLATFORM allows specially crafted content in URLs to be used with TokenReplace and not be properly sanitized by some SkinObjects. This issue has been patched in version 10.0.1.

Affected products

• DotNetNuke CMS Fixed in 9.1.1: from 6.0.0 before 10.0.1 — fixed in 10.0.1

How to fix

Upgrade to a fixed version: DotNetNuke CMS Fixed in 9.1.1 10.0.1. Check the vendor advisory for mitigations.

References

• https://github.com/dnnsoftware/Dnn.Platform/commit/74f6de68da1572c1d7e9c6e30e9f77f7c5596b1b
• https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-pf4h-vrv6-cmvr

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