Vulnerability-Lookup

GHSA-FFQ7-898W-9JC4

Vulnerability from github – Published: 2026-04-10 20:42 – Updated: 2026-04-14 21:56

Summary

DotNetNuke.Core has stored cross-site-scripting (XSS) via SVG upload

Details

A user could upload a specially crafted SVG file that could include scripts that can target both authenticated and unauthenticated DNN users. The impact is increased if the scripts are run by a power user.

Severity ?

8.0 (High)


                  
                    CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "NuGet",
        "name": "DotNetNuke.Core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "10.2.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-40321"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-87"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-10T20:42:48Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "A user could upload a specially crafted SVG file that could include scripts that can target both authenticated and unauthenticated DNN users. The impact is increased if the scripts are run by a power user.",
  "id": "GHSA-ffq7-898w-9jc4",
  "modified": "2026-04-14T21:56:18Z",
  "published": "2026-04-10T20:42:48Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-ffq7-898w-9jc4"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/dnnsoftware/Dnn.Platform"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dnnsoftware/Dnn.Platform/releases/tag/v10.2.2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "DotNetNuke.Core has stored cross-site-scripting (XSS) via SVG upload"
}

CVE-2026-40321 (GCVE-0-2026-40321)

Vulnerability from cvelistv5 – Published: 2026-04-17 21:10 – Updated: 2026-04-22 03:55

Title

DotNetNuke.Core has stored cross-site-scripting (XSS) via SVG upload

Summary

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.2.2, a user could upload a specially crafted SVG file that could include scripts that can target both authenticated and unauthenticated DNN users. The impact is increased if the scripts are run by a power user. Version 10.2.2 patches the issue.

Severity ?

8.1 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

CWE

CWE-87 - Improper Neutralization of Alternate XSS Syntax

Assigner

GitHub_M

References

URL

Tags

	https://github.com/dnnsoftware/Dnn.Platform/secur…	x_refsource_CONFIRM
	https://github.com/dnnsoftware/Dnn.Platform/relea…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	dnnsoftware	Dnn.Platform	Affected: < 10.2.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-40321",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-21T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-22T03:55:44.141Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Dnn.Platform",
          "vendor": "dnnsoftware",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 10.2.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to version 10.2.2, a user could upload a specially crafted SVG file that could include scripts that can target both authenticated and unauthenticated DNN users. The impact is increased if the scripts are run by a power user. Version 10.2.2 patches the issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-87",
              "description": "CWE-87: Improper Neutralization of Alternate XSS Syntax",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-17T21:10:33.192Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-ffq7-898w-9jc4",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-ffq7-898w-9jc4"
        },
        {
          "name": "https://github.com/dnnsoftware/Dnn.Platform/releases/tag/v10.2.2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/dnnsoftware/Dnn.Platform/releases/tag/v10.2.2"
        }
      ],
      "source": {
        "advisory": "GHSA-ffq7-898w-9jc4",
        "discovery": "UNKNOWN"
      },
      "title": "DotNetNuke.Core has stored cross-site-scripting (XSS) via SVG upload"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-40321",
    "datePublished": "2026-04-17T21:10:33.192Z",
    "dateReserved": "2026-04-10T21:41:54.505Z",
    "dateUpdated": "2026-04-22T03:55:44.141Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-FFQ7-898W-9JC4

CVE-2026-40321 (GCVE-0-2026-40321)

Tags

Sightings

Nomenclature