Vulnerability Details CVE-2022-31065
BigBlueButton is an open source web conferencing system. In affected versions an attacker can embed malicious JS in their username and have it executed on the victim's client. When a user receives a private chat from the attacker (whose username contains malicious JavaScript), the script gets executed. Additionally when the victim receives a notification that the attacker has left the session. This issue has been patched in version 2.4.8 and 2.5.0. There are no known workarounds for this issue.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 53.7%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 4.3
References
- https://github.com/bigbluebutton/bigbluebutton/pull/15087
- https://github.com/bigbluebutton/bigbluebutton/pull/15090
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-8m2p-7qv3-qff7
- https://github.com/bigbluebutton/bigbluebutton/pull/15087
- https://github.com/bigbluebutton/bigbluebutton/pull/15090
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-8m2p-7qv3-qff7
Products affected by CVE-2022-31065
-
cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.0
-
cpe:2.3:a:bigbluebutton:bigbluebutton:2.4
-
cpe:2.3:a:bigbluebutton:bigbluebutton:2.4.0
-
cpe:2.3:a:bigbluebutton:bigbluebutton:2.4.1
-
cpe:2.3:a:bigbluebutton:bigbluebutton:2.4.2
-
cpe:2.3:a:bigbluebutton:bigbluebutton:2.4.3
-
cpe:2.3:a:bigbluebutton:bigbluebutton:2.4.4
-
cpe:2.3:a:bigbluebutton:bigbluebutton:2.4.5
-
cpe:2.3:a:bigbluebutton:bigbluebutton:2.4.6
-
cpe:2.3:a:bigbluebutton:bigbluebutton:2.4.7
-
cpe:2.3:a:bigbluebutton:bigbluebutton:2.4.9
-
cpe:2.3:a:bigbluebutton:bigbluebutton:2.5