Halo blog 1.2.0 allows users to submit comments on blog posts via /api/content/posts/comments. The javascript code supplied by the attacker will then execute in the victim user's browser.
{ "versions": [ { "introduced": "0" }, { "last_affected": "1.2.0" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-19007.json"