Incorrect User Management vulnerability in Naukowa i Akademicka Sieć Komputerowa - Państwowy Instytut Badawczy EZD RP allows logged-in user to list all users in the system, including those from other organizations. This issue affects EZD RP: from 15 before 15.84, from 16 before 16.15, from 17 before 17.2.