app/backup/index.php in the Backup Module in FusionPBX 4.4.3 suffers from a command injection vulnerability due to a lack of input validation, which allows authenticated administrative attackers to execute commands on the host.

app/operatorpanel/exec.php in the Operator Panel module in FusionPBX 4.4.3 suffers from a command injection vulnerability due to a lack of input validation that allows authenticated non-administrative attackers to execute commands on the host. This can further lead to remote code execution when combined with an XSS vulnerability also present in the FusionPBX Operator Panel module.

app/operatorpanel/indexinc.php in the Operator Panel module in FusionPBX 4.4.3 suffers from an information disclosure vulnerability due to excessive debug information, which allows authenticated administrative attackers to obtain credentials and other sensitive information.

XSS in app/operatorpanel/indexinc.php in the Operator Panel module in FusionPBX 4.4.3 allows remote unauthenticated attackers to inject arbitrary JavaScript characters by placing a phone call using a specially crafted caller ID number. This can further lead to remote code execution by chaining this vulnerability with a command injection vulnerability also present in FusionPBX.