GHSA-vr9v-27gg-qgx4Published

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.

Recorded JSON

osv · GHSA-vr9v-27gg-qgx4

Published

### Impact Authenticated users are able to inject HTML vulnerability into an input field, which is rendered in the confirmation dialog without proper output encoding. ### Patches This issue has been patched in 17.4.0

Source published: 21 May 2026 20:43:06 UTC
Source modified: 10 Jun 2026 18:46:55 UTC
Observed here: 23 Oct 2026 16:01:25 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

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

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Publisher rating · MODERATE