CVE-2019-18626
Harris Ormed Self Service before 2019.1.4 allows an authenticated user to view W-2 forms belonging to other users via an arbitrary empNo value to the ORMEDMIS/Data/PY/T4W2Service.svc/RetrieveW2EntriesForEmployee URI, thus exposing sensitive information including employee tax information, social security numbers, home addresses, and more.
Source: CVE-2019-18626