# CVE-2011-4563: Cross-site scripting in n/a

> Remote attackers can inject arbitrary web script via the userpost parameter in JAKCMS private messages, 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:** No
- **Published:** 28 Nov 2011
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-r58r-4r8g-w6p7

## What is CVE-2011-4563?

CVE-2011-4563 is a medium-severity cross-site scripting vulnerability in n/a, published on 28 Nov 2011. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Cross-site scripting (XSS) vulnerability in index.php in JAKCMS 2.0.4.1, and possibly other versions before 2.2.6 2011-09-23, allows remote attackers to inject arbitrary web script or HTML via the userpost parameter in a PM request, related to tinymce.  NOTE: some of these details are obtained from third party information.

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

## Which versions are affected by CVE-2011-4563?

It affects 1 product.


Products: Jakcms Jakcms.

## How do I fix CVE-2011-4563?

No fix has been published for CVE-2011-4563 yet. Limit exposure of the affected software until one is available.

## Is CVE-2011-4563 being exploited?

There is no known exploitation of CVE-2011-4563 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-4563 and fix it if it is affected.

What it is: CVE-2011-4563 is a medium-severity cross-site scripting vulnerability in n/a, published on 28 Nov 2011. 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-2011-4563 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-2011-4563/ (Markdown: https://insights.sbomify.com/CVE-2011-4563/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-4563
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-4563
- OSV: https://osv.dev/vulnerability/CVE-2011-4563

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-4563/
Summaries are generated and may contain mistakes; the official description above is the record.