GHSA-QMJJ-P7M9-WJRV @actual-app/sync-server: Missing authorization in sync endpoints allows cross-user budget file access in multi-user mode

In multi-user mode OpenID, the sync API endpoints /sync/ don't verify that the authenticated user owns or has access to the file being operated on. Any authenticated user can read, modify, and overwrite any other user's budget files by providing their file ID. Affected Code File:...