CVE-2022-36028

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 71% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
56(Track)
EG Risk 56/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity91% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
28.7%
KEV
Not listed

Published

April 25, 2024

Last Modified

April 24, 2025

Advisory Details (2)

Auto-updated Jul 21, 2026
Patch available. Sources: github_commit.
generic

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github_commit Patch Available

commit 20fe1ee71b57 (bigbluebutton/greenlight)

Patch available: bigbluebutton/greenlight release-2.14.10 (contains commit 20fe1ee71b57)

https://github.com/bigbluebutton/greenlight/commit/20fe1ee71b5703fcc4ed698a959ad224fed19623

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 49× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 106 total refreshes for this CVE.

  1. 2026-07-23 14:16 UTCEPSS rescore
  2. 2026-07-23 02:12 UTCEG score recompute
  3. 2026-07-22 22:59 UTCEG score recompute
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  1. 2026-07-11 08:25 UTCEPSS rescore
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  20. 2026-06-26 13:39 UTCOSV refresh
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  45. 2026-06-11 13:58 UTCEPSS rescore
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  47. 2026-06-10 22:17 UTCEPSS rescore
  48. 2026-06-10 13:20 UTCEPSS rescore
  49. 2026-06-08 20:41 UTCOSV refresh
  50. 2026-06-08 14:15 UTCEPSS rescore
  51. 2026-06-08 14:15 UTCEPSS rescore
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  73. 2026-05-27 13:39 UTCEPSS rescore
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  75. 2026-05-26 13:43 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2022-36028?
CVE-2022-36028 is a critical vulnerability published on April 25, 2024. 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.
When was CVE-2022-36028 disclosed?
CVE-2022-36028 was first published in the National Vulnerability Database on April 25, 2024, with the most recent update on April 24, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-36028 actively exploited?
CVE-2022-36028 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 28.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-36028?
CVE-2022-36028 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2022-36028?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-36028, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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