CVE-2020-27602: Bigbluebutton

Critical severity, CVSS 9.8. EPSS: 1.4% chance of exploitation in the next 30 days.

BigBlueButton before 2.2.7 does not have a protection mechanism for separator injection in meetingId, userId, and authToken.

Affected products

• Bigbluebutton Bigbluebutton: before 2.2.7 (fixed in 2.2.7)

Published 2022-09-29. Last modified 2026-06-17.