Typora 1.7.4 OS Command Injection via Export PDF Preferences

{
                    "defaultStatus": "unaffected",
                    "product": "Typora",
                    "vendor": "Typora",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "1.7.4",
                            "versionType": "custom"
                        }
                    ]
                }