# CVE-2012-4558: Cross-site scripting in n/a

> Remote attackers can inject arbitrary web script or HTML into the Apache mod_proxy_balancer manager interface, requiring user interaction to execute.

- **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:** Yes
- **Published:** 26 Feb 2013
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2012-4558, GHSA-gvpv-mmxx-g3g2

## What is CVE-2012-4558?

CVE-2012-4558 is a medium-severity cross-site scripting vulnerability in Apache Http Server, published on 26 Feb 2013. 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 balancer_handler function in the manager interface in mod_proxy_balancer.c in the mod_proxy_balancer module in the Apache HTTP Server 2.2.x before 2.2.24-dev and 2.4.x before 2.4.4 allow remote attackers to inject arbitrary web script or HTML via a crafted string.

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

## Which versions are affected by CVE-2012-4558?

It affects 1 product.


Products: Apache Http Server.

## How do I fix CVE-2012-4558?

Upgrade to a fixed version.

## Is CVE-2012-4558 being exploited?

There is no known exploitation of CVE-2012-4558 in the wild and no public exploit code.

## Other vulnerabilities in Apache Http Server

- [CVE-2021-42013](https://insights.sbomify.com/CVE-2021-42013/): Apache HTTP Server Path Traversal (critical 9.8, exploited in the wild)
- [CVE-2024-38475](https://insights.sbomify.com/CVE-2024-38475/): Apache HTTP Server Improper Escaping of Output (critical 9.1, exploited in the wild)
- [CVE-2021-40438](https://insights.sbomify.com/CVE-2021-40438/): Apache HTTP Server-Side Request Forgery (SSRF) (critical 9.0, exploited in the wild)
- [CVE-2019-0211](https://insights.sbomify.com/CVE-2019-0211/): Apache HTTP Server Privilege Escalation (high 7.8, exploited in the wild)
- [CVE-2021-41773](https://insights.sbomify.com/CVE-2021-41773/): Apache HTTP Server Path Traversal (high 7.5, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-4558 and fix it if it is affected.

What it is: CVE-2012-4558 is a medium-severity cross-site scripting vulnerability in Apache Http Server, published on 26 Feb 2013. 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-2012-4558 in the wild and no public exploit code.

Affected product: Apache Http Server. 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-2012-4558/ (Markdown: https://insights.sbomify.com/CVE-2012-4558/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-4558
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-4558
- OSV: https://osv.dev/vulnerability/CVE-2012-4558

---
From sbomify Insights: https://insights.sbomify.com/CVE-2012-4558/
Summaries are generated and may contain mistakes; the official description above is the record.