# CVE-2006-5426: Code injection in n/a

> Remote attackers can execute arbitrary PHP code in LoCal Calendar System via a malicious URL in the LIBDIR parameter.

- **Severity:** High 7.5 (`AV:N/AC:L/Au:N/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Oct 2006
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-wc5c-m89q-6935

## What is CVE-2006-5426?

CVE-2006-5426 is a high-severity code injection vulnerability in n/a, published on 20 Oct 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

PHP remote file inclusion vulnerability in lib/lcUser.php in LoCal Calendar System 1.1 remote attackers to execute arbitrary PHP code via a URL in the LIBDIR parameter.

## Which versions are affected by CVE-2006-5426?

It affects 1 product.


Products: Local Calendar System Local Calendar System.

## How do I fix CVE-2006-5426?

No fix has been published for CVE-2006-5426 yet. Limit exposure of the affected software until one is available.

## Is CVE-2006-5426 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2006-5426 exists.

Public exploit code:

- LoCal Calendar 1.1 - 'lcUser.php' Remote File Inclusion (exploitdb)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2006-5426 and fix it if it is affected.

What it is: CVE-2006-5426 is a high-severity code injection vulnerability in n/a, published on 20 Oct 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2006-5426 exists.

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-2006-5426/ (Markdown: https://insights.sbomify.com/CVE-2006-5426/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2006-5426
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2006-5426
- OSV: https://osv.dev/vulnerability/CVE-2006-5426

---
From sbomify Insights: https://insights.sbomify.com/CVE-2006-5426/
Summaries are generated and may contain mistakes; the official description above is the record.