CVE Intelligence

Bigbluebutton Bbb-playback vulnerabilities

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Published CVEs affecting Bigbluebutton Bbb-playback: 1 record(s), with affected versions and fixes.

CVE-2026-27737 Medium · 6.5 CWE-79 May 18, 2026
BigBlueButton has Stored XSS in bbb-playback replay
BigBlueButton is an open-source virtual classroom. In versions prior to 3.0.19, the recording playback (presentation format) was not sanitizing user's input in public chat. This allowed for a malicious actor to craft and carry out a targeted XSS attack, activated on anyone replaying the recording. This issue has been fixed 3.0.19.