# CVE-2011-4449: File upload in n/a

> Remote attackers can execute arbitrary PHP code by uploading files with specific extensions when INTRANET_MODE is enabled.

- **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:** 5 Sep 2012
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-424q-6vp4-f875

## What is CVE-2011-4449?

CVE-2011-4449 is a medium-severity vulnerability in n/a, published on 5 Sep 2012. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

actions/files/files.php in WikkaWiki 1.3.1 and 1.3.2, when INTRANET_MODE is enabled, supports file uploads for file extensions that are typically absent from an Apache HTTP Server TypesConfig file, which makes it easier for remote attackers to execute arbitrary PHP code by placing this code in a file whose name has multiple extensions, as demonstrated by a (1) .mm or (2) .vpp file.

## Which versions are affected by CVE-2011-4449?

It affects 1 product.


Products: Wikkawiki Wikkawiki.

## How do I fix CVE-2011-4449?

No fix has been published for CVE-2011-4449 yet. Limit exposure of the affected software until one is available.

## Is CVE-2011-4449 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-4449 exists.

Public exploit code:

- WikkaWiki 1.3.2 - Multiple Vulnerabilities (exploitdb)
- WikkaWiki 1.3.2 - Spam Logging PHP Injection (Metasploit) (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2007-2613](https://insights.sbomify.com/CVE-2007-2613/): Code injection in n/a (high 8.3)
- [CVE-2011-4448](https://insights.sbomify.com/CVE-2011-4448/): SQL injection in n/a (high 7.5)
- [CVE-2007-2612](https://insights.sbomify.com/CVE-2007-2612/): SQL injection in n/a (high 7.5)
- [CVE-2006-7049](https://insights.sbomify.com/CVE-2006-7049/): Path traversal in n/a (high 7.5)
- [CVE-2011-4452](https://insights.sbomify.com/CVE-2011-4452/): Cross-site request forgery in n/a (medium 6.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-4449 and fix it if it is affected.

What it is: CVE-2011-4449 is a medium-severity vulnerability in n/a, published on 5 Sep 2012. 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-2011-4449 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-2011-4449/ (Markdown: https://insights.sbomify.com/CVE-2011-4449/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-4449
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-4449
- OSV: https://osv.dev/vulnerability/CVE-2011-4449

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-4449/
Summaries are generated and may contain mistakes; the official description above is the record.