Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bigbluebutton | Bigbluebutton | >= 2.4, < 2.4.8 |
Related Weaknesses (CWE)
References
- https://github.com/bigbluebutton/bigbluebutton/pull/15087PatchThird Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/pull/15090PatchThird Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-8m2p-7qvPatchThird Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/pull/15087PatchThird Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/pull/15090PatchThird Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-8m2p-7qvPatchThird Party Advisory
FAQ
What is CVE-2022-31065?
CVE-2022-31065 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 p...
How severe is CVE-2022-31065?
CVE-2022-31065 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-31065?
Check the references section above for vendor advisories and patch information. Affected products include: Bigbluebutton Bigbluebutton.