CVE-2022-31065
In affected versions an attacker can embed malicious JS in their username and have it executed on the victim's client.
Does this matter?
Lower severity and a low EPSS score (0.75%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.75% probability · 53th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- bigbluebutton/bigbluebutton
- Source
- security-advisories@github.com
References
- https://github.com/bigbluebutton/bigbluebutton/pull/15087Patch, Third Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/pull/15090Patch, Third Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-8m2p-7qv3-qff7Patch, Third Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/pull/15087Patch, Third Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/pull/15090Patch, Third Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-8m2p-7qv3-qff7Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.