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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.004 (27.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Bigbluebutton Greenlight — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- huntr.com/bounties/ba5834bd-1f04-4936-8e93-2442d45403bahttps:// (Third Party Advisory, Broken Link)
- github.com/bigbluebutton/greenlight/commit/20fe1ee71b5703fcc4ed698a959ad224fed1… (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.