Vulnerability Database

319,592

Total vulnerabilities in the database

CVE-2022-31065

BigBlueButton is an open source web conferencing system. In affected versions an attacker can embed malicious JS in their username and have it executed on the victim's client. When a user receives a private chat from the attacker (whose username contains malicious JavaScript), the script gets executed. Additionally when the victim receives a notification that the attacker has left the session. This issue has been patched in version 2.4.8 and 2.5.0. There are no known workarounds for this issue.

  • Published: Jun 27, 2022
  • Updated: Nov 16, 2025
  • CVE: CVE-2022-31065
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 6.5
  • AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

CVSS v2:

  • Severity: Low
  • Score: 4.3
  • AV:N/AC:M/Au:N/C:N/I:P/A:N

CWEs:

OWASP TOP 10:

Software From Fixed in
bigbluebutton / bigbluebutton 2.5-alpha1 2.5-alpha1.x
bigbluebutton / bigbluebutton 2.5-beta2 2.5-beta2.x
bigbluebutton / bigbluebutton 2.5-beta1 2.5-beta1.x
bigbluebutton / bigbluebutton 2.5-alpha6 2.5-alpha6.x
bigbluebutton / bigbluebutton 2.5-alpha5 2.5-alpha5.x
bigbluebutton / bigbluebutton 2.5-alpha4 2.5-alpha4.x
bigbluebutton / bigbluebutton 2.5-alpha3 2.5-alpha3.x
bigbluebutton / bigbluebutton 2.5-alpha2 2.5-alpha2.x
bigbluebutton / bigbluebutton 2.4 2.4.8
bigbluebutton / bigbluebutton 2.3.0 2.3.0.x
bigbluebutton / bigbluebutton 2.5-rc.3 2.5-rc.3.x
bigbluebutton / bigbluebutton 2.5-rc.4 2.5-rc.4.x
bigbluebutton / bigbluebutton 2.5-rc.2 2.5-rc.2.x
bigbluebutton / bigbluebutton 2.5-rc.1 2.5-rc.1.x
bigbluebutton / bigbluebutton 2.4.9 2.4.9.x