# CVE-2007-4039: Command injection in n/a

> Remote attackers can execute arbitrary commands via shell metacharacters in URIs registered with Mozilla, leading to cross-browser scripting and code execution.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 27 Jul 2007
- **Updated:** 3 Apr 2025
- **Also known as:** GHSA-5qrv-2vjc-xwcq

## What is CVE-2007-4039?

CVE-2007-4039 is a critical command injection vulnerability in Mozilla Mozilla, published on 27 Jul 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Argument injection vulnerability involving Mozilla, when certain URIs are registered, allows remote attackers to conduct cross-browser scripting attacks and execute arbitrary commands via shell metacharacters in an unspecified URI, which are inserted into the command line when invoking the handling process, a similar issue to CVE-2007-3670.

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

## Which versions are affected by CVE-2007-4039?

It affects 1 product.


Products: Mozilla Mozilla.

## How do I fix CVE-2007-4039?

No fix has been published for CVE-2007-4039 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-4039 being exploited?

There is no known exploitation of CVE-2007-4039 in the wild and no public exploit code.

## Other vulnerabilities in Mozilla Mozilla

- [CVE-2007-1794](https://insights.sbomify.com/CVE-2007-1794/): Use after free in n/a (critical 10.0)
- [CVE-2004-0722](https://insights.sbomify.com/CVE-2004-0722/): Integer overflow in n/a (critical 10.0)
- [CVE-2003-0791](https://insights.sbomify.com/CVE-2003-0791/): Deserialization in n/a (critical 9.8)
- [CVE-2005-3896](https://insights.sbomify.com/CVE-2005-3896/): Denial of service in n/a (high 7.8)
- [CVE-2002-2061](https://insights.sbomify.com/CVE-2002-2061/): Memory corruption in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-4039 and fix it if it is affected.

What it is: CVE-2007-4039 is a critical command injection vulnerability in Mozilla Mozilla, published on 27 Jul 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2007-4039 in the wild and no public exploit code.

Affected product: Mozilla Mozilla. 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-2007-4039/ (Markdown: https://insights.sbomify.com/CVE-2007-4039/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-4039
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-4039
- OSV: https://osv.dev/vulnerability/CVE-2007-4039

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-4039/
Summaries are generated and may contain mistakes; the official description above is the record.