Riskcovery

CVE-2023-43797

BigBlueButton Stored Cross-site Scripting vulnerability at Guest Lobby

State
Published
Severity
6.3 Medium
Published
Oct 30, 2023
Updated
Sep 5, 2024
Reserved
Sep 22, 2023

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.16.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:LGitHub_M

Weaknesses

  • CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

ProductVersions
bigbluebuttonbigbluebutton
  • < 2.6.11Affected
  • >= 2.7.0-alpha.1, < 2.7.0-beta.3Affected

References

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