An issue was discovered in Joomla! before 3.9.15. Inadequate escaping of usernames allows XSS attacks in com_actionlogs.
{ "versions": [ { "introduced": "3.9.0" }, { "fixed": "3.9.14" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8421.json"