# CVE-2024-37656: Open redirect in n/a

> Remote attackers can exploit insufficient URL verification in the logout script to redirect users and potentially obtain sensitive information.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 7 Jul 2025
- **Updated:** 8 Jul 2025
- **Also known as:** GHSA-hjfh-v9xj-7f93

## What is CVE-2024-37656?

CVE-2024-37656 is a medium-severity vulnerability in n/a, published on 7 Jul 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

An open redirect vulnerability in gnuboard5 v.5.5.16 allows a remote attacker to obtain sensitive information via the insufficient URL parameter verification in bbs/logout.php.

Weakness: CWE-601 (URL Redirection to Untrusted Site)

## Which versions are affected by CVE-2024-37656?

It affects 1 product.


Products: Sir Gnuboard.

## How do I fix CVE-2024-37656?

No fix has been published for CVE-2024-37656 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-37656 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-37656 exists.

Public exploit code:

- GnuBoard5 5.5.16 - Open Redirect (nuclei): http/cves/2024/CVE-2024-37656.yaml

## Other vulnerabilities in n/a

- [CVE-2024-41475](https://insights.sbomify.com/CVE-2024-41475/): Misconfiguration in n/a (critical 9.8)
- [CVE-2020-18662](https://insights.sbomify.com/CVE-2020-18662/): SQL injection in n/a (critical 9.8)
- [CVE-2005-0269](https://insights.sbomify.com/CVE-2005-0269/): File upload in n/a (critical 9.8)
- [CVE-2022-1252](https://insights.sbomify.com/CVE-2022-1252/): Use of a Broken or Risky Cryptographic Algorithm in gnuboard/gnuboard5 (high 8.2)
- [CVE-2022-44216](https://insights.sbomify.com/CVE-2022-44216/): Missing authorization in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-37656 and fix it if it is affected.

What it is: CVE-2024-37656 is a medium-severity vulnerability in n/a, published on 7 Jul 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-37656 exists.

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-2024-37656/ (Markdown: https://insights.sbomify.com/CVE-2024-37656/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-37656
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-37656
- OSV: https://osv.dev/vulnerability/CVE-2024-37656

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-37656/
Summaries are generated and may contain mistakes; the official description above is the record.