GHSA-h66j-xm43-47pp

Umbraco CMS contains a server-side request forgery vulnerability

Source: GitHub Advisory Database (reviewed) Moderate CVE-2021-47776

Packages

Ecosystem	Package	Affected	Fixed in
NuGet	UmbracoCms	8.14.1	no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.

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