# CVE-2008-5663: File upload in n/a

> Authenticated users can upload executable files to execute arbitrary code on the server via unrestricted file upload vulnerabilities.

- **Severity:** Critical 9.0 (`AV:N/AC:L/Au:S/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Dec 2008
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-rmcv-5fxr-m463

## What is CVE-2008-5663?

CVE-2008-5663 is a critical vulnerability in n/a, published on 18 Dec 2008. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Multiple unrestricted file upload vulnerabilities in Kusaba 1.0.4 and earlier allow remote authenticated users to execute arbitrary code by uploading a file with an executable extension using (1) load_receiver.php or (2) a shipainter action to paint_save.php, then accessing the uploaded file via a direct request to this file in their user directory.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2008-5663?

It affects 1 product.


Products: Kusaba Kusaba.

## How do I fix CVE-2008-5663?

No fix has been published for CVE-2008-5663 yet. Limit exposure of the affected software until one is available.

## Is CVE-2008-5663 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2008-5663 exists.

Public exploit code:

- Kusaba 1.0.4 - Remote Code Execution (1) (exploitdb)
- Kusaba 1.0.4 - Remote Code Execution (2) (exploitdb)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2008-5663 and fix it if it is affected.

What it is: CVE-2008-5663 is a critical vulnerability in n/a, published on 18 Dec 2008. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2008-5663 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-2008-5663/ (Markdown: https://insights.sbomify.com/CVE-2008-5663/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2008-5663
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2008-5663
- OSV: https://osv.dev/vulnerability/CVE-2008-5663

---
From sbomify Insights: https://insights.sbomify.com/CVE-2008-5663/
Summaries are generated and may contain mistakes; the official description above is the record.