A malicious site could spoof the contents of the print preview window if popup windows are enabled, resulting in user confusion of what site is currently loaded. This vulnerability affects Firefox < 52 and Thunderbird < 52.
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-5421.json"
[ { "events": [ { "introduced": "0" }, { "fixed": "52.0." } ] }, { "events": [ { "introduced": "0" }, { "fixed": "52.0." } ] } ]