Cross site scripting in username that will trigger by sending chat
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://github.com/bigbluebutton/bigbluebutton/pull/15090
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-hwv2-5pf5-hr87
- https://github.com/bigbluebutton/bigbluebutton/pull/15067
- https://pentests.nl/pentest-blog/stored-xss-in-bigbluebutton/
- http://seclists.org/fulldisclosure/2022/Jun/52
- http://packetstormsecurity.com/files/167682/BigBlueButton-2.3-2.4.7-Cross-Site-Scripting.html
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