CVE-2022-31064

moderate-risk
Published 2022-06-27

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.

Do I need to act?

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0.78% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10 Medium
NETWORK / LOW complexity

Affected Products (15)

Affected Vendors

Bigbluebutton

References (12)

Exploit http://packetstormsecurity.com/files/167682/BigBlueButton-2.3-2.4.7-Cross-Site-S...
Exploit http://seclists.org/fulldisclosure/2022/Jun/52
Patch https://github.com/bigbluebutton/bigbluebutton/pull/15067
Patch https://github.com/bigbluebutton/bigbluebutton/pull/15090
Patch https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-hwv2-5pf...
Exploit https://pentests.nl/pentest-blog/stored-xss-in-bigbluebutton/
Exploit http://packetstormsecurity.com/files/167682/BigBlueButton-2.3-2.4.7-Cross-Site-S...
Exploit http://seclists.org/fulldisclosure/2022/Jun/52
Patch https://github.com/bigbluebutton/bigbluebutton/pull/15067
Patch https://github.com/bigbluebutton/bigbluebutton/pull/15090
Patch https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-hwv2-5pf...
Exploit https://pentests.nl/pentest-blog/stored-xss-in-bigbluebutton/
45
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 3/34 · Minimal
Exposure 18/34 · Moderate