XSS in Bigbluebutton
CVE-2022-31064
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.012 (65.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L.
Affected products
- Bigbluebutton — versions 2.5, < 2.4.8, 2.3.0
Weakness classification (CWE)
References
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM, Patch, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC, Release Notes)
- security-advisories@github.com (Exploit, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (mailing-list, Exploit, x_refsource_FULLDISC, Mailing List, Third Party Advisory)
- security-advisories@github.com (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2022-31064?
- CVE-2022-31064 is a medium-severity vulnerability in Bigbluebutton, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2022-06-27.
- How severe is CVE-2022-31064?
- Medium severity. CVSS v3 base score is 6.5 out of 10.