Description
BigBlueButton before 2.3 does not implement LibreOffice sandboxing. This might make it easier for remote authenticated users to read the API shared secret in the bigbluebutton.properties file. With the API shared secret, an attacker can (for example) use api/join to join an arbitrary meeting regardless of its guestPolicy setting.
References (2)
Core 2
Core References
Exploit, Third Party Advisory x_refsource_misc
https://www.golem.de/news/big-blue-button-das-grosse-blaue-sicherheitsrisiko-2010-151610.html
Product x_refsource_misc
https://docs.bigbluebutton.org/dev/api.html
Scores
CVSS v3
6.5
EPSS
0.0113
EPSS Percentile
62.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-116
Status
published
Products (1)
bigbluebutton/bigbluebutton
< 2.2.8
Published
Oct 21, 2020
Tracked Since
Feb 18, 2026