XSS in Bigbluebutton
CVE-2022-27238
BigBlueButton version 2.4.7 (or earlier) is vulnerable to stored Cross-Site Scripting (XSS) in the private chat functionality. A threat actor could inject JavaScript payload in his/her username. The payload gets executed in the browser of the victim each time the attacker sends a private message to the victim or when notification about the attacker leaving room is displayed.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.004 (35.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Bigbluebutton
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2022-27238?
- CVE-2022-27238 is a medium-severity vulnerability in Bigbluebutton, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-06-24.
- How severe is CVE-2022-27238?
- Medium severity. CVSS v3 base score is 5.4 out of 10.