CodiMD 1.3.1, when Safari is used, allows XSS via an IFRAME element with allow-top-navigation in the sandbox attribute, in conjunction with a data: URL.
{ "versions": [ { "introduced": "0" }, { "last_affected": "1.3.1" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-15499.json"