CVE-2022-31064: Cross site scripting in username that will trigger by sending chat
First published: Mon Jun 27 2022(Updated: )
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.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Bigbluebutton Bigbluebutton | >=2.4<2.4.8 | |
| Bigbluebutton Bigbluebutton | =2.3.0 | |
| Bigbluebutton Bigbluebutton | =2.4.9 | |
| Bigbluebutton Bigbluebutton | =2.5-alpha1 | |
| Bigbluebutton Bigbluebutton | =2.5-alpha2 | |
| Bigbluebutton Bigbluebutton | =2.5-alpha3 | |
| Bigbluebutton Bigbluebutton | =2.5-alpha4 | |
| Bigbluebutton Bigbluebutton | =2.5-alpha5 | |
| Bigbluebutton Bigbluebutton | =2.5-alpha6 | |
| Bigbluebutton Bigbluebutton | =2.5-beta1 | |
| Bigbluebutton Bigbluebutton | =2.5-beta2 | |
| Bigbluebutton Bigbluebutton | =2.5-rc.1 | |
| Bigbluebutton Bigbluebutton | =2.5-rc.2 | |
| Bigbluebutton Bigbluebutton | =2.5-rc.3 | |
| Bigbluebutton Bigbluebutton | =2.5-rc.4 |
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Reference Links
- http://packetstormsecurity.com/files/167682/BigBlueButton-2.3-2.4.7-Cross-Site-Scripting.html
- http://seclists.org/fulldisclosure/2022/Jun/52
- https://github.com/bigbluebutton/bigbluebutton/pull/15067
- https://github.com/bigbluebutton/bigbluebutton/pull/15090
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-hwv2-5pf5-hr87
- https://pentests.nl/pentest-blog/stored-xss-in-bigbluebutton/
Frequently Asked Questions
What is CVE-2022-31064?
CVE-2022-31064 is a vulnerability in the BigBlueButton web conferencing system that allows for cross-site scripting attacks in meetings with private chat enabled.
What is the severity of CVE-2022-31064?
The severity of CVE-2022-31064 is medium, with a CVSS score of 5.4.
Which versions of BigBlueButton are affected by CVE-2022-31064?
Versions 2.3.0 to 2.4.8 of BigBlueButton are affected by CVE-2022-31064.
How does CVE-2022-31064 work?
CVE-2022-31064 occurs when the attacker (with xss in the name) starts a chat in the victim's client, executing JavaScript.
Are there any patches or fixes available for CVE-2022-31064?
Yes, the BigBlueButton project has released a fix for CVE-2022-31064, which can be found in their GitHub repository.
- collector/nvd-index
- agent/references
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/author
- agent/weakness
- agent/severity
- agent/last-modified-date
- agent/tags
- agent/title
- agent/description
- agent/event
- agent/first-publish-date
- vendor/bigbluebutton
- canonical/bigbluebutton bigbluebutton
- version/bigbluebutton bigbluebutton/2.4
- version/bigbluebutton bigbluebutton/2.3.0
- version/bigbluebutton bigbluebutton/2.4.9
- version/bigbluebutton bigbluebutton/2.5-alpha1
- version/bigbluebutton bigbluebutton/2.5-alpha2
- version/bigbluebutton bigbluebutton/2.5-alpha3
- version/bigbluebutton bigbluebutton/2.5-alpha4
- version/bigbluebutton bigbluebutton/2.5-alpha5
- version/bigbluebutton bigbluebutton/2.5-alpha6
- version/bigbluebutton bigbluebutton/2.5-beta1
- version/bigbluebutton bigbluebutton/2.5-beta2
- version/bigbluebutton bigbluebutton/2.5-rc.1
- version/bigbluebutton bigbluebutton/2.5-rc.2
- version/bigbluebutton bigbluebutton/2.5-rc.3
- version/bigbluebutton bigbluebutton/2.5-rc.4