Privilege Escalation via QuFTP Log-based XSS

{
                    "vendor": "QNAP Systems Inc.",
                    "product": "QuFTP Service",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "1.4.x",
                            "lessThan": "1.4.6",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "1.5.x",
                            "lessThan": "1.5.5",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "1.6.x",
                            "lessThan": "1.6.5",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }