Description
BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton failed to escape meetingName in record-and-playback/screenshare/playback/index.html.erb when generating the screenshare playback format. A low-privileged user could store a crafted meeting name that embedded script content, and the script executed in another user-s browser when that user replayed the recording. This issue is fixed in version 3.0.29.
CVSS 5.4EPSS 0.165%Risque 0.55
Voir la source- Publication
- 2026-08-20 22:17:22
- Versions concernées
- <3.0.29
- Type
- Application web
- Dernière modification
- 2026-08-21 16:17:19
- Vecteur
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N