CVE-2019-16964: Improper Neutralization of Special Elements used in an OS Command

app/callcenters/cmd.php in the Call Center Queue Module in FusionPBX up to 4.5.7 suffers from a command injection vulnerability due to a lack of input validation, which allows authenticated attackers with at least the permission callcenterqueueadd or callcenterqueueedit to execute any commands on...