{"id":"CVE-2026-40321","state":"PUBLISHED","title":"DotNetNuke.Core has stored cross-site-scripting (XSS) via SVG upload","description":"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.","publishedAt":"2026-04-17T21:10:33.192Z","updatedAt":"2026-04-22T03:55:44.141Z","severity":{"score":8.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["dnnsoftware Dnn.Platform"],"affected":[{"vendor":"dnnsoftware","product":"Dnn.Platform","versions":[{"version":"< 10.2.2","status":"affected"}]}],"references":["https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-ffq7-898w-9jc4","https://github.com/dnnsoftware/Dnn.Platform/releases/tag/v10.2.2"],"weaknesses":["CWE-87"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/40xxx/CVE-2026-40321.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40321","state":"PUBLISHED","datePublished":"2026-04-17T21:10:33.192Z","dateUpdated":"2026-04-22T03:55:44.141Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-10T21:41:54.505Z"},"containers":{"cna":{"title":"DotNetNuke.Core has stored cross-site-scripting (XSS) via SVG upload","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."}],"affected":[{"vendor":"dnnsoftware","product":"Dnn.Platform","versions":[{"version":"< 10.2.2","status":"affected"}]}],"references":[{"url":"https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-ffq7-898w-9jc4","name":"https://github.com/dnnsoftware/Dnn.Platform/security/advisories/GHSA-ffq7-898w-9jc4","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/dnnsoftware/Dnn.Platform/releases/tag/v10.2.2","name":"https://github.com/dnnsoftware/Dnn.Platform/releases/tag/v10.2.2","tags":["x_refsource_MISC"]}],"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","lang":"en","description":"CWE-87: Improper Neutralization of Alternate XSS Syntax","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-17T21:10:33.192Z"},"source":{"advisory":"GHSA-ffq7-898w-9jc4","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-21T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-40321"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-22T03:55:44.141Z"}}]}}}