CVE-2025-52486: DNN.PLATFORM Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-pf4h-vrv6-cmvr
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CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2025-52486 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting DNN.PLATFORM libraries in the NuGet ecosystem. The issue involves dnn.platform allows reflected cross-site scripting (xss) in some tokenreplace situations with skinobjects. Remediation is available by upgrading affected packages to version 10.0.1.

CVE-2025-52486 at a Glance

CVE Identifier CVE-2025-52486
GHSA Identifier GHSA-pf4h-vrv6-cmvr
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product DNN.PLATFORM
Package Ecosystem NuGet
Published Date
Last Updated

Security Impact

CVSS: 6.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2025-52486

To remediate this vulnerability, upgrade all affected DNN.PLATFORM dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

DNN.PLATFORM fixed: 10.0.1 
Upgrade DNN.PLATFORM to 10.0.1
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for DNN.PLATFORM

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-52486, inspect your project dependencies for DNN.PLATFORM:

inspect dependencies for DNN.PLATFORM

Analyze the terminal output to locate any version of DNN.PLATFORM in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 10.0.1), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In DNN.PLATFORM, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

DNN.PLATFORM allows specially crafted content in URLs could be used with TokenReplace and not be properly sanitized by some SkinObjects. This vulnerability is fixed in 10.0.1.

CVE-2025-52486 Affected DNN.PLATFORM Versions

1 component(s)
Fixed Versions:
10.0.1
Product / Package Ecosystem Affected Versions Fixed Version
DNN.PLATFORM
nuget/DNN.PLATFORM
NuGet
≥ 6.0.0
< 10.0.1
10.0.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-pf4h-vrv6-cmvr
NVD — CVE-2025-52486 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-52486
Security Fix Commit FIX COMMIT
https://github.com/dnnsoftware/Dnn.Platform/commit/74f6de68da1572c1d7e9c6e30e9f77f7c5596b1b
DNN.PLATFORM Source Repository REPOSITORY
https://github.com/dnnsoftware/Dnn.Platform

Frequently Asked Questions

What is CVE-2025-52486?
CVE-2025-52486 is a security vulnerability in DNN.PLATFORM involving DNN.PLATFORM Allows Reflected Cross-Site Scripting (XSS) in some TokenReplace situations with SkinObjects under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which DNN.PLATFORM versions are affected?
Affected versions include releases prior to 10.0.1 across affected packages: DNN.PLATFORM.
What version fixes CVE-2025-52486?
Upgrading to 10.0.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is DNN.PLATFORM affected?
Yes, DNN.PLATFORM is affected in releases prior to 10.0.1. Upgrade your dependency to 10.0.1 or later.
What is the CVSS score of CVE-2025-52486?
CVE-2025-52486 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2025-52486?
CVE-2025-52486 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check NuGet dependencies for CVE-2025-52486?
Run the dependency tree command: 'inspect dependencies for DNN.PLATFORM'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-pf4h-vrv6-cmvr",
  "modified" : "2025-09-15T20:07:36Z",
  "published" : "2025-06-20T14:56:53Z",
  "aliases" : [ "CVE-2025-52486" ],
  "summary" : "DNN.PLATFORM Allows Reflected Cross-Site Scripting (XSS) in some TokenReplace situations with SkinObjects",
  "details" : "DNN.PLATFORM allows specially crafted content in URLs could be used with TokenReplace and not be properly sanitized by some SkinObjects. This vulnerability is fixed in 10.0.1.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "DNN.PLATFORM"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "6.0.0"
      }, {
        "fixed" : "10.0.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-pf4h-vrv6-cmvr"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-52486"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dnnsoftware/Dnn.Platform/commit/74f6de68da1572c1d7e9c6e30e9f77f7c5596b1b"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/dnnsoftware/Dnn.Platform"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-06-20T14:56:53Z",
    "nvd_published_at" : "2025-06-21T03:15:24Z"
  }
}