Cross Site Scriptiong (XSS) vulnerability exists in FusionPBX 4.5.7 allows remote malicious users to inject arbitrary web script or HTML via an unsanitized "querystring" variable in app\devices\deviceimports.php.
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-21053.json"
[ { "events": [ { "introduced": "0" }, { "last_affected": "4.5.7" } ] } ]