# CVE-2022-31095: Exposure of Sensitive Information in discourse-chat

> An attacker can view private direct messages in the Discourse chat plugin by guessing message IDs, exposing sensitive information.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Jun 2022
- **Updated:** 23 Apr 2025

## What is CVE-2022-31095?

CVE-2022-31095 is a medium-severity missing authorization vulnerability in discourse-chat, published on 21 Jun 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

discourse-chat is a chat plugin for the Discourse application. Versions prior to 0.4 are vulnerable to an exposure of sensitive information, where an attacker who knows the message ID for a channel they do not have access to can view that message using the chat message lookup endpoint, primarily affecting direct message channels. There are no known workarounds for this issue, and users are advised to update the plugin.

Weakness: CWE-862 (Missing Authorization), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2022-31095?

It affects 1 product.


Products: Discourse Discourse-Chat.

## How do I fix CVE-2022-31095?

No fix has been published for CVE-2022-31095 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-31095 being exploited?

There is no known exploitation of CVE-2022-31095 in the wild and no public exploit code.

## Other vulnerabilities in discourse-chat

- [CVE-2022-36057](https://insights.sbomify.com/CVE-2022-36057/): Discourse-Chat Cross-Site Scripting issue for channel names and descriptions (medium 5.4)
- [CVE-2022-39279](https://insights.sbomify.com/CVE-2022-39279/): Discourse-chat plugin susceptible to XSS in channel name and description (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-31095 and fix it if it is affected.

What it is: CVE-2022-31095 is a medium-severity missing authorization vulnerability in discourse-chat, published on 21 Jun 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-31095 in the wild and no public exploit code.

Affected product: discourse-chat. 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-2022-31095/ (Markdown: https://insights.sbomify.com/CVE-2022-31095/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-31095
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-31095
- OSV: https://osv.dev/vulnerability/CVE-2022-31095

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-31095/
Summaries are generated and may contain mistakes; the official description above is the record.