Livebox Collaboration Vdesk
An issue exists in the software due to Broken Access Control. This issue affects several API endpoints: "/api/v1/vdeskintegration/saml/user/createorupdate", "/settings/guest-settings", "/settings/samlusers-settings", and "/settings/users-settings". A malicious user who is already logged in as a SAML User can escalate privileges from a low-privilege user (FGM user) to an administrative user (GGU user), including the administrator, or create new users without needing an admin role.