What is GHSA-vr9v-27gg-qgx4?

GHSA-vr9v-27gg-qgx4 is a security advisory published by GitHub Security Advisories with Medium severity. Umbraco.Cms: XSS/HTML Injection in Umbraco Backoffice confirmation dialog

Which CVE IDs does GHSA-vr9v-27gg-qgx4 cover?

GHSA-vr9v-27gg-qgx4 covers the following CVE IDs: CVE-2026-46609. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-vr9v-27gg-qgx4?

GHSA-vr9v-27gg-qgx4 has a CVSS v3 base score of 4.6, published by GitHub Security Advisories.

Which products are affected by GHSA-vr9v-27gg-qgx4?

GHSA-vr9v-27gg-qgx4 affects 1 product, including: nuget/Umbraco.Cms:\u003e= 14.0.0, \u003c= 17.3.5.

GHSA-vr9v-27gg-qgx4MediumCVSS 4.6

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

Vendor

GitHub Security Advisories

Published

May 21, 2026

Last Modified

May 21, 2026

🔗 CVE IDs covered (1)

CVE-2026-46609 →

📋 Description

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

🎯 Affected products1

nuget/Umbraco.Cms:>= 14.0.0, <= 17.3.5

🔗 References (2)

https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-vr9v-27gg-qgx4
https://github.com/advisories/GHSA-vr9v-27gg-qgx4