Vulnerability Description
BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn. An attacker with a valid join link to a meeting can trick BigBlueButton into generating a signed join link with additional parameters. One of those parameters may be "role=moderator", allowing an attacker to join a meeting as moderator using a join link that was originally created for viewer access. This vulnerability has been patched in version(s) 2.6.18, 2.7.8 and 3.0.0-alpha.7.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/bigbluebutton/bigbluebutton/commit/a9d436accdcd26ea66bed9f391
- https://github.com/bigbluebutton/bigbluebutton/commit/ea6e9461dceae8fa593543d8c6
- https://github.com/bigbluebutton/bigbluebutton/pull/20279
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-4m48-49h
- https://github.com/bigbluebutton/bigbluebutton/commit/a9d436accdcd26ea66bed9f391
- https://github.com/bigbluebutton/bigbluebutton/commit/ea6e9461dceae8fa593543d8c6
- https://github.com/bigbluebutton/bigbluebutton/pull/20279
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-4m48-49h
FAQ
What is CVE-2024-38518?
CVE-2024-38518 is a vulnerability with a CVSS score of 4.6 (MEDIUM). BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn. An attacker with a valid join link to a meeting can trick BigBlueButton into generating a signed j...
How severe is CVE-2024-38518?
CVE-2024-38518 has been rated MEDIUM with a CVSS base score of 4.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-38518?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.