CVE-2026-48492: Snipe-IT's selectlist visibility is too permissive

The GET /api/v1/{object}/selectlist API endpoint is missing an authorization check. Any user who can log into Snipe-IT - regardless of permissions - can retrieve a paginated list of all user accounts using only their web session cookie. No API token or elevated permissions are required. This exposes usernames, display names, employee numbers, and user IDs for every active account in the system if FMCS is not enabled, and within the company they belong to if FMCS is enabled.