CVE-2021-47776

MEDIUM

5.3

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.

Details CVE

Score CVSS v3.15.3

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie1/15/2026

Derniere modification1/23/2026

Sourcenvd

Observations honeypot0

Produits affectes

umbraco:umbraco_cms

Faiblesses (CWE)

CWE-918

References

https://our.umbraco.com/(disclosure@vulncheck.com)

https://releases.umbraco.com/all-releases(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/50462(disclosure@vulncheck.com)

Correlations IOC

Aucune correlation enregistree

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