Improper access control in BigBlueButton - CVE-2024-38518
Published: June 27, 2024 / Updated: April 14, 2026
Vulnerability identifier: #VU125910
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-38518
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Blindside Networks
Affected software:
BigBlueButton
BigBlueButton
Detailed vulnerability description
The vulnerability allows a remote user to disclose sensitive information and cause a denial of service.
The vulnerability exists due to improper access control in the join API when handling additional parameters in join requests. A remote user can supply a crafted join link with additional parameters to disclose sensitive information and cause a denial of service.
User interaction is required because the issue involves use of a valid join link to a meeting.
How to mitigate CVE-2024-38518
Install security update from vendor's website.