# CVE-2006-4759: File upload in n/a

> Authenticated administrators can upload arbitrary files via null byte injection in the avatar directory path, leading to remote code execution.

- **Severity:** Low 3.6 (`AV:N/AC:H/Au:S/C:N/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Sep 2006
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-g4x2-4f64-9pmw

## What is CVE-2006-4759?

CVE-2006-4759 is a low-severity vulnerability in n/a, published on 13 Sep 2006. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

PunBB 1.2.12 does not properly handle an avatar directory pathname ending in %00, which allows remote authenticated administrative users to upload arbitrary files and execute code, as demonstrated by a query to admin_options.php with an avatars_dir parameter ending in %00. NOTE: this issue was originally disputed by the vendor, but the dispute was withdrawn on 20060926.

## Which versions are affected by CVE-2006-4759?

It affects 1 product.


Products: Punbb Punbb.

## How do I fix CVE-2006-4759?

No fix has been published for CVE-2006-4759 yet. Limit exposure of the affected software until one is available.

## Is CVE-2006-4759 being exploited?

There is no known exploitation of CVE-2006-4759 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2008-3335](https://insights.sbomify.com/CVE-2008-3335/): Command injection in n/a (critical 10.0)
- [CVE-2006-1090](https://insights.sbomify.com/CVE-2006-1090/): Denial of service in n/a (high 7.8)
- [CVE-2007-2234](https://insights.sbomify.com/CVE-2007-2234/): SQL injection in n/a (high 7.5)
- [CVE-2006-5735](https://insights.sbomify.com/CVE-2006-5735/): Path traversal in n/a (high 7.5)
- [CVE-2005-3518](https://insights.sbomify.com/CVE-2005-3518/): SQL injection in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2006-4759 and fix it if it is affected.

What it is: CVE-2006-4759 is a low-severity vulnerability in n/a, published on 13 Sep 2006. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2006-4759 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-2006-4759/ (Markdown: https://insights.sbomify.com/CVE-2006-4759/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2006-4759
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2006-4759
- OSV: https://osv.dev/vulnerability/CVE-2006-4759

---
From sbomify Insights: https://insights.sbomify.com/CVE-2006-4759/
Summaries are generated and may contain mistakes; the official description above is the record.