{"id":"CVE-2020-27612","details":"Greenlight in BigBlueButton through 2.2.28 places usernames in room URLs, which may represent an unintended information leak to users in a room, or an information leak to outsiders if any user publishes a screenshot of a browser window.","modified":"2026-07-08T19:03:06.772933Z","published":"2020-10-21T15:15:27.517Z","references":[{"type":"WEB","url":"https://docs.bigbluebutton.org/admin/privacy.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/bigbluebutton/bigbluebutton","events":[{"introduced":"0"},{"last_affected":"563625097e7ebcef462a9e8001798ddb203f1810"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"2.2.28"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*"}}],"versions":["v2.2.28","v2.2.27","v2.2.26","v2.2.23","v2.2.25","v2.2.24","v2.2.22","v2.2.21","v2.2.20","v2.2.19","v2.2.18","v2.2.17","v2.2.16","v2.2.15","v2.2.14","v2.2.12","v2.2.11-good","v2.2.10","v2.2.9","v2.2.8","v2.2.7","v2.2.6","v2.2.5","v2.2.4","v2.2.2","v2.2.3","v2.2.1","v2.2.0","2.2-rc-6","2.2-rc-5","2.2-rc-4","2.2-beta-17","2.2-beta-16","2.2-beta-15","2.2-beta-14","2.2-beta-12","2.2-beta-11","2.2-beta-10","2.2-beta-9","2.2-beta-8","2.2-beta-7","2.2-beta-6","2.2-beta-5","2.2-beta-4","2.2-beta-3","2.2-beta-2","dcs-2-a","v0.9.0-beta","v0.8","v0.8rc2","v0.8b4.0","v0.8b4"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-27612.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}