CVE-2022-27238
5.4 · MEDIUMOverview
CVE-2022-27238 is a medium-severity vulnerability affecting bigbluebutton bigbluebutton. It was published on June 24, 2022 and has a CVSS 3.1 base score of 5.4 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from bigbluebutton. Update bigbluebutton to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| bigbluebutton | bigbluebutton | 0 | Affected |
Frequently Asked Questions
What is CVE-2022-27238?
CVE-2022-27238 is a medium-severity vulnerability affecting bigbluebutton bigbluebutton. It was published on June 24, 2022 and has a CVSS 3.1 base score of 5.4 (MEDIUM).
How severe is CVE-2022-27238?
This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2022-27238?
Check the references section for vendor advisories and patches from bigbluebutton. Update bigbluebutton to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2022-27238?
CyberStrike's AI-powered security agents can automatically detect CVE-2022-27238 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
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