# CVE-2026-89334: Missing authorization in Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots

> Authenticated attackers can access private chat transcripts and user data due to missing authorization checks in the Better Messages WordPress plugin.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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:** 19 Sep 2026
- **Updated:** 19 Sep 2026
- **Also known as:** GHSA-4f44-p79q-6vj4

## What is CVE-2026-89334?

CVE-2026-89334 is a medium-severity missing authorization vulnerability in wordplus Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots, published on 19 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.15.33. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with custom-level access and above, to access the full message transcript, thread metadata, and user data of any chat-room thread without authentication. This is only exploitable when the chat room's only_joined_can_read setting retains its default value of '0'.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-89334?


## How do I fix CVE-2026-89334?

No fix has been published for CVE-2026-89334 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-89334 being exploited?

There is no known exploitation of CVE-2026-89334 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-89334 and fix it if it is affected.

What it is: CVE-2026-89334 is a medium-severity missing authorization vulnerability in wordplus Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots, published on 19 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-89334 in the wild and no public exploit code.

Affected product: wordplus Better Messages – Chat Rooms, Group Chat, Private Messages & AI Chat Bots. 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-2026-89334/ (Markdown: https://insights.sbomify.com/CVE-2026-89334/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-89334
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-89334
- OSV: https://osv.dev/vulnerability/CVE-2026-89334

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-89334/
Summaries are generated and may contain mistakes; the official description above is the record.