Skip to content
OpenAdvisories
Medium · 5.3 CVE-2021-47776 EUVD-2026-2753GHSA-h66j-xm43-47pp

Umbraco v8.14.1 - 'baseUrl' SSRF

Published Jan 15, 2026 · Updated Oct 8, 2026 · Assigned by VulnCheck

Description

Umbraco CMS v8.14.1 contains a server-side request forgery vulnerability that allows attackers to manipulate baseUrl parameters in multiple dashboard and help controller endpoints. Attackers can craft malicious requests to the GetContextHelpForPage, GetRemoteDashboardContent, and GetRemoteDashboardCss endpoints to trigger unauthorized server-side requests to external hosts.

Affected products

VendorProductAffectedFixed
umbraco Umbraco 8.14.1 —

Affected packages

EcosystemPackageAffectedFixedRecord
NuGet UmbracoCms 8.14.1 — GHSA-h66j-xm43-47pp

References