Descripción
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.
CVSS 6.5EPSS 0.257%Riesgo 0.67
Ver fuente- Publicación
- 2026-05-18 22:16:37
- Versiones afectadas
- <3.0.19
- Tipo
- Core software
- Última modificación
- 2026-07-24 13:10:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N