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Umbraco.Cms: XSS/HTML Injection in Umbraco Backoffice confirmation dialog

Exact source revision recorded 23 Oct 2026 16:01:25 UTC. It does not establish the source's current position. Latest evidence.

osv · GHSA-vr9v-27gg-qgx4

Published

Umbraco.Cms

NuGet

ECOSYSTEM · introduced 14.0.0 → fixed 17.4.0

98 explicitly affected versions

14.0.0, 14.1.0, 14.1.0-rc, 14.1.0-rc2, 14.1.1, 14.1.2, 14.2.0, 14.2.0-rc, 14.2.0-rc2, 14.2.0-rc3, 14.3.0, 14.3.0-rc, 14.3.1, 14.3.2, 14.3.3, 14.3.4, 15.0.0, 15.0.0-rc1, 15.0.0-rc2, 15.0.0-rc3, 15.0.0-rc4, 15.1.0, 15.1.0-rc, 15.1.0-rc2, 15.1.1, 15.1.2, 15.2.0, 15.2.0-rc, 15.2.1, 15.2.2, 15.2.3, 15.3.0, 15.3.0-rc, 15.3.0-rc2, 15.3.1, 15.4.0, 15.4.0-rc, 15.4.0-rc2, 15.4.1, 15.4.2, 15.4.3, 15.4.4, 16.0.0, 16.0.0-rc, 16.0.0-rc2, 16.0.0-rc3, 16.0.0-rc4, 16.0.0-rc5, 16.0.0-rc6, 16.1.0, 16.1.0-rc, 16.1.1, 16.2.0, 16.2.0-rc, 16.2.0-rc2, 16.3.0, 16.3.0-rc, 16.3.0-rc2, 16.3.0-rc3, 16.3.0-rc4, 16.3.1, 16.3.2, 16.3.3, 16.3.4, 16.4.0, 16.4.0-rc, 16.4.0-rc2, 16.4.1, 16.5.0, 16.5.0-rc, 16.5.1, 17.0.0, 17.0.0-beta, 17.0.0-rc1, 17.0.0-rc2, 17.0.0-rc3, 17.0.0-rc4, 17.0.1, 17.0.2, 17.1.0, 17.1.0-rc, 17.2.0, 17.2.0-rc, 17.2.0-rc2, 17.2.1, 17.2.2, 17.3.0, 17.3.0-rc, 17.3.0-rc2, 17.3.0-rc3, 17.3.1, 17.3.2, 17.3.3, 17.3.4, 17.3.5, 17.4.0-rc, 17.4.0-rc2, 17.4.0-rc3

Original source record · Cite this exact observation · Complete original publisher JSON

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 7 Nov 18:17 UTC · 275 of 275 readable · 274 fully read · documentation 469/469 current