# CVE-2023-6922: Under Construction / Maintenance Mode from Acurax <= 2.6 - Authenticated (Subscriber+) Sensitive Information Exposure

> Authenticated attackers can extract sensitive subscriber data like names and emails from the Acurax Under Construction plugin.

- **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:** 28 Feb 2024
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-3r9p-rc57-36hr

## What is CVE-2023-6922?

CVE-2023-6922 is a medium-severity vulnerability in Under Construction / Maintenance Mode from Acurax, published on 28 Feb 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Under Construction / Maintenance Mode from Acurax plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 2.6 via the 'acx_csma_subscribe_ajax' function. This can allow authenticated attackers to extract sensitive data such as names and email addresses of subscribed visitors.

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

## Which versions are affected by CVE-2023-6922?

It affects 1 product.


Products: Acurax Under Construction \/ Maintenance Mode.

## How do I fix CVE-2023-6922?

No fix has been published for CVE-2023-6922 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-6922 being exploited?

There is no known exploitation of CVE-2023-6922 in the wild and no public exploit code.

## Other vulnerabilities in Under Construction / Maintenance Mode from Acurax

- [CVE-2023-39926](https://insights.sbomify.com/CVE-2023-39926/): WordPress Under Construction / Maintenance Mode from Acurax Plugin <= 2.6 is vulnerable to Cross Site Scripting (XSS) (high 7.1)
- [CVE-2024-1476](https://insights.sbomify.com/CVE-2024-1476/): Under Construction / Maintenance Mode from Acurax <= 2.6 - Information Exposure (medium 5.3)
- [CVE-2024-35749](https://insights.sbomify.com/CVE-2024-35749/): WordPress Under Construction / Maintenance Mode from Acurax plugin <= 2.6 - IP Bypass vulnerability (low 3.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-6922 and fix it if it is affected.

What it is: CVE-2023-6922 is a medium-severity vulnerability in Under Construction / Maintenance Mode from Acurax, published on 28 Feb 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-6922 in the wild and no public exploit code.

Affected product: Under Construction / Maintenance Mode from Acurax. 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-2023-6922/ (Markdown: https://insights.sbomify.com/CVE-2023-6922/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-6922
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-6922
- OSV: https://osv.dev/vulnerability/CVE-2023-6922

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-6922/
Summaries are generated and may contain mistakes; the official description above is the record.