add_user in AbiSoft Ticketly 1.0 allows remote attackers to create administrator accounts via an action/add_user.php POST request.Referenceshttps://www.exploit-db.com/exploits/45892https://0day.today/exploit/31658https://medium.com/%40javierolmedo/cve-2018-18922-ticketly-1-0-privilege-escalation-add-admin-4d1b3696f367https://hackpuntes.com/cve-2018-18922-ticketly-1-0-escalacion-de-privilegios-crear-cuenta-administrador/