Arbitrary file upload in BigBlueButton - CVE-2023-42803
Published: October 31, 2023
Vulnerability identifier: #VU82581
CSH Severity: Medium
CVSS v4: 7.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-42803
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to insufficient validation of file during file upload in the insertDocument API. A remote user can upload a malicious file and execute it on the server.
Affected software
BigBlueButton
How to mitigate CVE-2023-42803
Install updates from vendor's website.
BigBlueButton - update to 2.6.0