MEDIUM 5.3

GHSA-h66j-xm43-47pp

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.

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Affected packages

NuGet / UmbracoCms

No fixed version published yet for UmbracoCms (nuget). Pin to a known-safe version or switch to an alternative.

References

https://nvd.nist.gov/vuln/detail/CVE-2021-47776 [ADVISORY]
https://github.com/umbraco/Umbraco-CMS [PACKAGE]
https://our.umbraco.com [WEB]
https://releases.umbraco.com/all-releases [WEB]
https://www.exploit-db.com/exploits/50462 [WEB]