Vulnerability CVE-2022-31064
Published: 2022-06-27

Description:
BigBlueButton is an open source web conferencing system. Users in meetings with private chat enabled are vulnerable to a cross site scripting attack in affected versions. The attack occurs when the attacker (with xss in the name) starts a chat. in the victim's client the JavaScript will be executed. This issue has been addressed in version 2.4.8 and 2.5.0. There are no known workarounds for this issue.

See advisories in our WLB2 database:
Topic
Author
Date
Low
BigBlueButton 2.3 / 2.4.7 Cross Site Scripting
Rick Verdoes
02.07.2022

Type:

CWE-79

 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))

 References:
https://pentests.nl/pentest-blog/stored-xss-in-bigbluebutton/
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-hwv2-5pf5-hr87
https://github.com/bigbluebutton/bigbluebutton/pull/15067
https://github.com/bigbluebutton/bigbluebutton/pull/15090
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