CVE-2022-31065

Cross site scripting vulnerability for private chat in bigbluebutton

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.07%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: bigbluebutton bigbluebutton
Published at:
Updated at:

References

Link Tags
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-8m2p-7qv3-qff7 third party advisory patch
https://github.com/bigbluebutton/bigbluebutton/pull/15087 third party advisory patch
https://github.com/bigbluebutton/bigbluebutton/pull/15090 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-31065?
CVE-2022-31065 has been scored as a medium severity vulnerability.
How to fix CVE-2022-31065?
To fix CVE-2022-31065, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-31065 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-31065 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-31065?
CVE-2022-31065 affects bigbluebutton bigbluebutton.
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