The CubeWP Framework WordPress plugin through 1.1.30 does not perform a per-object read...

The CubeWP Framework WordPress plugin through 1.1.30 does not perform a per-object read authorization check, nor restrict which metadata keys may be requested, on one of its REST API endpoints, allowing users with the Contributor role and above to read arbitrary post metadata (including that of other users' draft, pending, private, and password-protected posts) and arbitrary user metadata of any user, including administrators.