CVE-2026-55491 (GCVE-0-2026-55491)
Vulnerability from cvelistv5
Published
2026-08-20 21:35
Modified
2026-08-21 15:50
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
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.
Impacted products
Show details on NVD website


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