What is CVE-2022-36028?

CVE-2022-36028 is a critical-severity vulnerability in Bigbluebutton Greenlight, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 9.1/10. Published 2024-04-25.

How severe is CVE-2022-36028?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Is CVE-2022-36028 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Open Redirect in Bigbluebutton Greenlight

CVE-2022-36028

Greenlight is an end-user interface for BigBlueButton servers. Versions prior to 2.13.0 have an open redirect vulnerability in the Login page due to unchecked the value of the `return_to` cookie. Versions 2.13.0 contains a patch for the issue.

Vulnerability class: Open Redirect

EPSS: 0.004 (28.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Bigbluebutton Greenlight — versions 0

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

Public proof-of-concept exploits

References

security-advisories@github.com (Third Party Advisory, Broken Link)
security-advisories@github.com (Patch)

Frequently asked questions

What is CVE-2022-36028?: CVE-2022-36028 is a critical-severity vulnerability in Bigbluebutton Greenlight, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 9.1/10. Published 2024-04-25.
How severe is CVE-2022-36028?: Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2022-36028 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.