# CVE-2004-0839: Code injection in n/a

> Remote attackers can install arbitrary programs via malicious web pages exploiting Internet Explorer's drag-and-drop and popup features.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:P/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 14 Sep 2004
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-m47g-cqxq-6vwr

## What is CVE-2004-0839?

CVE-2004-0839 is a medium-severity code injection vulnerability in Microsoft Ie, published on 14 Sep 2004. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Internet Explorer in Windows XP SP2, and other versions including 5.01 and 5.5, allows remote attackers to install arbitrary programs via a web page that uses certain styles and the AnchorClick behavior, popup windows, and drag-and-drop capabilities to drop the program in the local startup folder, as demonstrated by "wottapoop.html".

## Which versions are affected by CVE-2004-0839?

It affects 18 products.


Products: Avaya Definity One Media Server, Avaya Ip600 Media Servers, Avaya Modular Messaging Message Storage Server, Avaya S3400, Avaya S8100, Microsoft Ie, Microsoft Internet Explorer, Microsoft Windows 2000, Microsoft Windows 2003 Server, Microsoft Windows 98, Microsoft Windows 98se, Microsoft Windows Me, Microsoft Windows Xp, Nortel Ip Softphone 2050, Nortel Mobile Voice Client 2050, Nortel Optivity Telephony Manager, Nortel Symposium Web Centre Portal, Nortel Symposium Web Client.

## How do I fix CVE-2004-0839?

No fix has been published for CVE-2004-0839 yet. Limit exposure of the affected software until one is available.

## Is CVE-2004-0839 being exploited?

There is no known exploitation of CVE-2004-0839 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Ie

- [CVE-2004-1050](https://insights.sbomify.com/CVE-2004-1050/): Memory corruption in n/a (critical 10.0)
- [CVE-2004-0201](https://insights.sbomify.com/CVE-2004-0201/): Memory corruption in n/a (critical 10.0)
- [CVE-2004-0212](https://insights.sbomify.com/CVE-2004-0212/): Memory corruption in n/a (critical 10.0)
- [CVE-2007-2374](https://insights.sbomify.com/CVE-2007-2374/): Code injection in n/a (critical 9.3)
- [CVE-2007-1765](https://insights.sbomify.com/CVE-2007-1765/): Memory corruption in n/a (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2004-0839 and fix it if it is affected.

What it is: CVE-2004-0839 is a medium-severity code injection vulnerability in Microsoft Ie, published on 14 Sep 2004. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2004-0839 in the wild and no public exploit code.

Affected product: Microsoft Ie. 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-2004-0839/ (Markdown: https://insights.sbomify.com/CVE-2004-0839/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2004-0839
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2004-0839
- OSV: https://osv.dev/vulnerability/CVE-2004-0839

---
From sbomify Insights: https://insights.sbomify.com/CVE-2004-0839/
Summaries are generated and may contain mistakes; the official description above is the record.