# CVE-2023-42954: Information disclosure in FileMaker Server

> An administrator logged into the FileMaker Server Admin Console could expose sensitive information to front-end websites, requiring an upgrade to fix.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Mar 2024
- **Updated:** 27 Aug 2024
- **Also known as:** GHSA-4qv4-vh73-q92w

## What is CVE-2023-42954?

CVE-2023-42954 is a medium-severity vulnerability in Claris FileMaker Server, published on 21 Mar 2024. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A privilege escalation issue existed in FileMaker Server, potentially exposing sensitive information to front-end websites when signed in to the Admin Console with an administrator role. This issue has been fixed in FileMaker Server 20.3.1 by reducing the information sent in requests.

Weakness: CWE-250 (Execution with Unnecessary Privileges)

## Which versions are affected by CVE-2023-42954?

It affects 2 products.


Products: Claris Claris Pro, Claris Filemaker Server.

## How do I fix CVE-2023-42954?

No fix has been published for CVE-2023-42954 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-42954 being exploited?

There is no known exploitation of CVE-2023-42954 in the wild and no public exploit code.

## Other vulnerabilities in Claris FileMaker Server

- [CVE-2023-42920](https://insights.sbomify.com/CVE-2023-42920/): Other in FileMaker Pro (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-42954 and fix it if it is affected.

What it is: CVE-2023-42954 is a medium-severity vulnerability in Claris FileMaker Server, published on 21 Mar 2024. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-42954 in the wild and no public exploit code.

Affected product: Claris FileMaker Server. 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-2023-42954/ (Markdown: https://insights.sbomify.com/CVE-2023-42954/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-42954
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-42954
- OSV: https://osv.dev/vulnerability/CVE-2023-42954

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-42954/
Summaries are generated and may contain mistakes; the official description above is the record.