# CVE-2022-29235: Limited data exposure for shared external videos in BigBlueButton

> An attacker with a meeting ID can view external video playback status, requiring an upgrade to BigBlueButton to fix.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Jun 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-x82p-j22f-v4q6

## What is CVE-2022-29235?

CVE-2022-29235 is a medium-severity vulnerability in bigbluebutton, published on 1 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4-rc-6, an attacker who is able to obtain the meeting identifier for a meeting on a server can find information related to an external video being shared, like the current timestamp and play/pause. The problem has been patched in versions 2.3.18 and 2.4-rc-6 by modifying the stream to send the data only for users in the meeting. There are currently no known workarounds.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2022-29235?

It affects 1 product.


Products: Bigbluebutton Bigbluebutton.

## How do I fix CVE-2022-29235?

No fix has been published for CVE-2022-29235 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-29235 being exploited?

There is no known exploitation of CVE-2022-29235 in the wild and no public exploit code.

## Other vulnerabilities in bigbluebutton

- [CVE-2020-27602](https://insights.sbomify.com/CVE-2020-27602/): Other in n/a (critical 9.8)
- [CVE-2020-27605](https://insights.sbomify.com/CVE-2020-27605/): Code injection in n/a (critical 9.8)
- [CVE-2020-12443](https://insights.sbomify.com/CVE-2020-12443/): Path traversal in n/a (critical 9.8)
- [CVE-2020-27613](https://insights.sbomify.com/CVE-2020-27613/): Hardcoded credentials in n/a (high 8.4)
- [CVE-2021-4143](https://insights.sbomify.com/CVE-2021-4143/): Cross-site Scripting (XSS) - Generic in bigbluebutton/bigbluebutton (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-29235 and fix it if it is affected.

What it is: CVE-2022-29235 is a medium-severity vulnerability in bigbluebutton, published on 1 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-29235 in the wild and no public exploit code.

Affected product: bigbluebutton. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2022-29235/ (Markdown: https://insights.sbomify.com/CVE-2022-29235/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-29235
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-29235
- OSV: https://osv.dev/vulnerability/CVE-2022-29235

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-29235/
Summaries are generated and may contain mistakes; the official description above is the record.