GHSA-h66j-xm43-47pp

Source

https://github.com/advisories/GHSA-h66j-xm43-47pp

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/01/GHSA-h66j-xm43-47pp/GHSA-h66j-xm43-47pp.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-h66j-xm43-47pp

Aliases

CVE-2021-47776

Published

2026-01-15T18:31:32Z

Modified

2026-01-15T22:56:24.901593Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L CVSS Calculator

Summary

Umbraco CMS contains a server-side request forgery vulnerability

Details

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.

Database specific

{
    "github_reviewed": true,
    "github_reviewed_at": "2026-01-15T22:39:22Z",
    "severity": "MODERATE",
    "nvd_published_at": "2026-01-15T16:16:09Z",
    "cwe_ids": [
        "CWE-918"
    ]
}

References

Affected packages

NuGet / UmbracoCms

Package

Name: UmbracoCms; View open source insights on deps.dev
Purl: pkg:nuget/UmbracoCms

Affected ranges

Affected versions

8.*

8.14.1

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/01/GHSA-h66j-xm43-47pp/GHSA-h66j-xm43-47pp.json"