Vulnerability in Bigbluebutton
CVE-2024-38518
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.
EPSS: 0.003 (23.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L.
Affected products
- Bigbluebutton — versions < 2.6.18, >= 2.7.0, < 2.7.8, >= 2.8.0, < 3.0.0-alpha.7
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2024-38518?
- CVE-2024-38518 is a medium-severity vulnerability in Bigbluebutton, classified under Improper Access Control. CVSS score: 4.6/10. Published 2024-06-28.
- How severe is CVE-2024-38518?
- Medium severity. CVSS v3 base score is 4.6 out of 10.