# CVE-2024-52043: User enumeration in HubHub

> Attackers can enumerate valid users via sensitive error messages in HumHub, exposing user account existence.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Nov 2024
- **Updated:** 6 Nov 2024
- **Also known as:** GHSA-3q4w-rf2j-fx5x

## What is CVE-2024-52043?

CVE-2024-52043 is a medium-severity vulnerability in HumHub, published on 6 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Generation of Error Message Containing Sensitive Information in HumHub GmbH & Co. KG - HumHub on Linux allows: Excavation (user enumeration).This issue affects all released HumHub versions: through 1.16.2.

Weakness: CWE-209 (Generation of Error Message Containing Sensitive Information)

## Which versions are affected by CVE-2024-52043?

It affects 1 product.


Products: Humhub Humhub.

## How do I fix CVE-2024-52043?

No fix has been published for CVE-2024-52043 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-52043 being exploited?

There is no known exploitation of CVE-2024-52043 in the wild and no public exploit code.

## Other vulnerabilities in HumHub

- [CVE-2014-9528](https://insights.sbomify.com/CVE-2014-9528/): SQL injection in n/a (high 7.5)
- [CVE-2025-64442](https://insights.sbomify.com/CVE-2025-64442/): HumHub is vulnerable to XSS through its Meta Search component (high 7.1)
- [CVE-2026-29048](https://insights.sbomify.com/CVE-2026-29048/): HumHub: XSS in Button component (medium 6.9)
- [CVE-2022-24865](https://insights.sbomify.com/CVE-2022-24865/): Improper access control in humhub (medium 6.5)
- [CVE-2021-43847](https://insights.sbomify.com/CVE-2021-43847/): Authorization Bypass in Space Invite in HumHub (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-52043 and fix it if it is affected.

What it is: CVE-2024-52043 is a medium-severity vulnerability in HumHub, published on 6 Nov 2024. 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-2024-52043 in the wild and no public exploit code.

Affected product: HumHub. 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-2024-52043/ (Markdown: https://insights.sbomify.com/CVE-2024-52043/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-52043
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-52043
- OSV: https://osv.dev/vulnerability/CVE-2024-52043

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-52043/
Summaries are generated and may contain mistakes; the official description above is the record.