# CVE-2012-6339: Cross-site scripting in n/a

> Attackers can inject malicious scripts into the Cerberus FTP Server admin interface via log entries or messages, potentially compromising administrator sessions.

- **Severity:** Medium 4.3 (`AV:N/AC:M/Au:N/C:N/I:P/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 31 Dec 2012
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-mcwx-6pf6-h924

## What is CVE-2012-6339?

CVE-2012-6339 is a medium-severity cross-site scripting vulnerability in n/a, published on 31 Dec 2012. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Multiple cross-site scripting (XSS) vulnerabilities in the administrative web interface in Cerberus FTP Server before 5.0.6.0 allow (1) remote attackers to inject arbitrary web script or HTML via a log entry that is not properly handled within the Log Manager component, and might allow (2) remote authenticated administrators to inject arbitrary web script or HTML via a Messages field to the servermanager program.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2012-6339?

It affects 1 product.


Products: Cerberusftp Ftp Server.

## How do I fix CVE-2012-6339?

No fix has been published for CVE-2012-6339 yet. Limit exposure of the affected software until one is available.

## Is CVE-2012-6339 being exploited?

There is no known exploitation of CVE-2012-6339 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2020-5196](https://insights.sbomify.com/CVE-2020-5196/): Missing authorization in n/a (high 8.1)
- [CVE-2017-6367](https://insights.sbomify.com/CVE-2017-6367/): Denial of service in n/a (high 7.5)
- [CVE-2026-6265](https://insights.sbomify.com/CVE-2026-6265/): Local Privilege Escalation in Cerberus FTP Server =< 2025.4.2 (high 7.3)
- [CVE-2012-2999](https://insights.sbomify.com/CVE-2012-2999/): Cross-site request forgery in n/a (medium 6.8)
- [CVE-2019-25046](https://insights.sbomify.com/CVE-2019-25046/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-6339 and fix it if it is affected.

What it is: CVE-2012-6339 is a medium-severity cross-site scripting vulnerability in n/a, published on 31 Dec 2012. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2012-6339 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-2012-6339/ (Markdown: https://insights.sbomify.com/CVE-2012-6339/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-6339
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-6339
- OSV: https://osv.dev/vulnerability/CVE-2012-6339

---
From sbomify Insights: https://insights.sbomify.com/CVE-2012-6339/
Summaries are generated and may contain mistakes; the official description above is the record.