{"id":"CVE-2022-27238","details":"BigBlueButton version 2.4.7 (or earlier) is vulnerable to stored Cross-Site Scripting (XSS) in the private chat functionality. A threat actor could inject JavaScript payload in his/her username. The payload gets executed in the browser of the victim each time the attacker sends a private message to the victim or when notification about the attacker leaving room is displayed.","modified":"2026-04-10T04:46:29.003917Z","published":"2022-06-24T16:15:09.243Z","references":[{"type":"ADVISORY","url":"https://www.mgm-sp.com/en/cve-2022-27238-bigbluebutton-xss/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/bigbluebutton/bigbluebutton","events":[{"introduced":"0"},{"last_affected":"eda21682ea3fd472c8d16fe7ec6bcf0f80370a6f"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"2.4.7"}]}}],"versions":["2.2-beta-10","2.2-beta-11","2.2-beta-12","2.2-beta-14","2.2-beta-15","2.2-beta-16","2.2-beta-17","2.2-beta-18","2.2-beta-19","2.2-beta-2","2.2-beta-20","2.2-beta-21","2.2-beta-22","2.2-beta-23","2.2-beta-3","2.2-beta-4","2.2-beta-5","2.2-beta-6","2.2-beta-7","2.2-beta-8","2.2-beta-9","2.2-rc-1","2.2-rc-2","2.2-rc-3","2.4-rc-2","dcs-2-a","v0.8","v0.8b4","v0.8b4.0","v0.8rc2","v0.9.0-beta","v2.3-alpha-1","v2.3-alpha-2","v2.3-alpha-3","v2.3-alpha-4","v2.3-alpha-5","v2.3-alpha-6","v2.3-alpha-7","v2.3-alpha-8","v2.3-beta-1","v2.3-beta-2","v2.3-beta-3","v2.3-beta-4","v2.3-beta-5","v2.3-rc-1","v2.3-rc-2","v2.3.0","v2.3.1","v2.4-alpha-1","v2.4-beta-1","v2.4-beta-2","v2.4-beta-3","v2.4-beta-4","v2.4-rc-1","v2.4-rc-3","v2.4-rc-4","v2.4-rc-5","v2.4-rc-6","v2.4-rc-7","v2.4.0","v2.4.1","v2.4.2","v2.4.3","v2.4.4","v2.4.5","v2.4.6","v2.4.7"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-27238.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}]}