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

Collected exploitation and prediction evidence

Risk source coverage

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

CVE-2026-40321

Exact risk observation. Current source statements above are a separate evidence layer. Latest risk evidence.

No KEV entry is attached to this observation; this is not evidence that exploitation is absent.

FIRST EPSS: 6.41 % · percentile 93.68 % · scored 30 Oct 2026.

Observed 31 Oct 2026 01:52:30 UTC · Complete immutable risk JSON

Immutable source observations

7 recorded revisions

Each citation identifies one complete source statement. Source modification dates and the time this installation observed them are distinct. Latest history includes records historically associated by source identifiers; a removed alias is not a current equivalence claim. Exact citations show that source record's own earlier observations. Failed reads and unchanged polls do not rewrite history.

1 Nov 2026 06:16:26 UTC

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 authenti…

euvd · EUVD-2026-24061 · Published

30 Oct 2026 06:00:38 UTC

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 authenti…

euvd · EUVD-2026-24061 · Published

28 Oct 2026 05:02:08 UTC

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 authenti…

euvd · EUVD-2026-24061 · Published

27 Oct 2026 10:09:56 UTC

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 authenti…

nvd · CVE-2026-40321 · Published

25 Oct 2026 09:17:24 UTC

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 authenti…

nvd · CVE-2026-40321 · Published

23 Oct 2026 16:01:25 UTC

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

osv · GHSA-ffq7-898w-9jc4 · Published

23 Oct 2026 15:48:27 UTC

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

cve-program · CVE-2026-40321 · Published

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 1 Nov 15:09 UTC · 275 of 275 readable · 272 fully read · documentation 469/469 current