An issue was discovered in Joomla! before 3.9.7. The update server URL of com_joomlaupdate can be manipulated by non Super-Admin users.
{ "versions": [ { "introduced": "3.8.13" }, { "fixed": "3.9.7" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-12764.json"