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MEDIUM5.4

GHSA-cfr5-7p54-4qg8

Privilege Escalation using Spoofing

Quick fix

GHSA-cfr5-7p54-4qg8 — Umbraco.CMS: upgrade to the fixed version with the command below.

dotnet add package Umbraco.CMS --version 8.18.10

Details

#### Impact Users with low privileges ( Editor, etc) are able to access some unintended endpoints.

#### Explanation of the vulnerability Possible to delete redirect urls, when disabled by admin with only access to backoffice Possible to access the examine dashboard with only access to backoffice Possible to access the published cache dashboard with only access to backoffice Possible to access the telemetry dashboard with only access to backoffice Possible to access the languages with only access to backoffice Possible to access the stylesheets with only access to backoffice

Are you affected?

Enter the version of the package you're using.

Affected packages

NuGet/Umbraco.CMS
Introduced in: 8.0.0Fixed in: 8.18.10
Fixdotnet add package Umbraco.CMS --version 8.18.10
NuGet/Umbraco.CMS
Introduced in: 9.0.0Fixed in: 10.8.1
Fixdotnet add package Umbraco.CMS --version 10.8.1
NuGet/Umbraco.CMS
Introduced in: 11.0.0Fixed in: 12.3.4
Fixdotnet add package Umbraco.CMS --version 12.3.4

References