# CVE-2023-38327: Information disclosure in n/a

> Unauthenticated attackers can enumerate valid users in eGroupWare via the freebusy endpoint, exposing user account information.

- **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:** 11 Jul 2025
- **Updated:** 15 Jul 2025
- **Also known as:** GHSA-vp7c-j92g-63ff

## What is CVE-2023-38327?

CVE-2023-38327 is a medium-severity vulnerability in n/a, published on 11 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in eGroupWare 17.1.20190111. A User Enumeration vulnerability exists under calendar/freebusy.php, which allows unauthenticated remote attackers to enumerate the users of web applications based on server response.

Weakness: CWE-203 (Observable Discrepancy)

## Which versions are affected by CVE-2023-38327?

It affects 1 product.


Products: Egroupware Egroupware.

## How do I fix CVE-2023-38327?

No fix has been published for CVE-2023-38327 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-38327 being exploited?

There is no known exploitation of CVE-2023-38327 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2008-2041](https://insights.sbomify.com/CVE-2008-2041/): Code injection in n/a (critical 10.0)
- [CVE-2007-3154](https://insights.sbomify.com/CVE-2007-3154/): Unspecified vulnerability in Walter Zorn wz_tooltip.js (aka wz_tooltips) before 4.01, as used by eGroupWare before 1.2.107-2 and other packa (critical 10.0)
- [CVE-2007-3155](https://insights.sbomify.com/CVE-2007-3155/): Other in n/a (critical 10.0)
- [CVE-2026-22243](https://insights.sbomify.com/CVE-2026-22243/): EGroupware has SQL Injection in Nextmatch Filter Processing (high 8.7)
- [CVE-2014-2988](https://insights.sbomify.com/CVE-2014-2988/): Code injection in n/a (high 8.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-38327 and fix it if it is affected.

What it is: CVE-2023-38327 is a medium-severity vulnerability in n/a, published on 11 Jul 2025. 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-2023-38327 in the wild and no public exploit code.

Affected product: n/a. 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-2023-38327/ (Markdown: https://insights.sbomify.com/CVE-2023-38327/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-38327
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-38327
- OSV: https://osv.dev/vulnerability/CVE-2023-38327

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-38327/
Summaries are generated and may contain mistakes; the official description above is the record.