The installation procedure in BigBlueButton before 2.2.28 (or earlier) exposes certain network services to external interfaces, and does not automatically set up a firewall configuration to block external access.
{ "versions": [ { "introduced": "0" }, { "fixed": "2.2.28" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-27610.json"