CVE-2024-37312 – Nextcloud user_oidc app's ID4me feature is available even when disabled

https://notcve.org/view.php?id=CVE-2024-37312

user_oidc app is an OpenID Connect user backend for Nextcloud. Missing access control on the ID4me endpoint allows an attacker to register an account eventually getting access to data that is available to all registered users. It is recommended that the OpenID Connect user backend is upgraded to 3.0.0 (Nextcloud 20-23), 4.0.0 (Nexcloud 24) or 5.0.0 (Nextcloud 25-28). La aplicación user_oidc es un backend de usuario de OpenID Connect para Nextcloud. La falta de control de acceso en el terminal ID4me permite a un atacante registrar una cuenta y eventualmente obtener acceso a los datos que están disponibles para todos los usuarios registrados. • https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vw7g-959g-vj6q https://github.com/nextcloud/user_oidc/commit/9f68a716ecd264160a7c098b8840313f1ac855f2 https://hackerone.com/reports/2376929 • CWE-284: Improper Access Control •