CVE-2023-43797

BigBlueButton Stored Cross-site Scripting vulnerability at Guest Lobby

Published Oct 30, 2023 CVSS 3.1 · 6.3 Medium EPSS < 1% KEV · Not listed
Description
BigBlueButton is an open-source virtual classroom. Prior to versions 2.6.11 and 2.7.0-beta.3, Guest Lobby was vulnerable to cross-site scripting when users wait to enter the meeting due to inserting unsanitized messages to the element using unsafe innerHTML. Text sanitizing was added for lobby messages starting in versions 2.6.11 and 2.7.0-beta.3. There are no known workarounds.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-48169 BigBlueButton is an open-source virtual classroom. Prior to versions 2.6.11 and 2.7.0-beta.3, Guest Lobby was vulnerable to cross-site scripting when users wait to enter the meeting due to inserting unsanitized messages to the element using unsafe innerHTML. Text sanitizing was added for lobby messages starting in versions 2.6.11 and 2.7.0-beta.3. There are no known workarounds.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Sep 5, 2024, 8:20 PM
Reserved
Sep 22, 2023, 2:51 PM
Status
Modified
Published
Oct 30, 2023, 11:15 PM
Modified
Jun 17, 2026, 6:26 AM