# CVE-2009-2270: File upload in n/a

> Remote attackers can execute arbitrary code by uploading malicious files with double extensions in DedeCMS member uploads.

- **Severity:** Medium 6.8 (`AV:N/AC:M/Au:N/C:P/I:P/A:P`)
- **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:** 1 Jul 2009
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-66x7-vp27-6978

## What is CVE-2009-2270?

CVE-2009-2270 is a medium-severity vulnerability in Dedecms Dedecms, published on 1 Jul 2009. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Unrestricted file upload vulnerability in member/uploads_edit.php in dedecms 5.3 allows remote attackers to execute arbitrary code by uploading a file with a double extension in the filename, then accessing this file via unspecified vectors, as demonstrated by a .jpg.php filename.

Weakness: CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2009-2270?

It affects 1 product.


Products: Dedecms Dedecms.

## How do I fix CVE-2009-2270?

No fix has been published for CVE-2009-2270 yet. Limit exposure of the affected software until one is available.

## Is CVE-2009-2270 being exploited?

There is no known exploitation of CVE-2009-2270 in the wild and no public exploit code.

## Other vulnerabilities in Dedecms Dedecms

- [CVE-2026-30643](https://insights.sbomify.com/CVE-2026-30643/): Code injection in n/a (critical 9.8)
- [CVE-2026-30694](https://insights.sbomify.com/CVE-2026-30694/): Code injection in n/a (critical 9.8)
- [CVE-2024-35510](https://insights.sbomify.com/CVE-2024-35510/): File upload in n/a (critical 9.8)
- [CVE-2024-35375](https://insights.sbomify.com/CVE-2024-35375/): File upload in n/a (critical 9.8)
- [CVE-2024-29661](https://insights.sbomify.com/CVE-2024-29661/): File upload in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2009-2270 and fix it if it is affected.

What it is: CVE-2009-2270 is a medium-severity vulnerability in Dedecms Dedecms, published on 1 Jul 2009. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2009-2270 in the wild and no public exploit code.

Affected product: Dedecms Dedecms. 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-2009-2270/ (Markdown: https://insights.sbomify.com/CVE-2009-2270/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2009-2270
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2009-2270
- OSV: https://osv.dev/vulnerability/CVE-2009-2270

---
From sbomify Insights: https://insights.sbomify.com/CVE-2009-2270/
Summaries are generated and may contain mistakes; the official description above is the record.