# CVE-2006-7013: Security feature bypass in n/a

> Remote attackers can spoof IP addresses via X-Forwarded-For headers to evade bans in Simple Machines Forum.

- **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:** 15 Feb 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-45v7-gg96-grpr

## What is CVE-2006-7013?

CVE-2006-7013 is a high-severity vulnerability in n/a, published on 15 Feb 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

QueryString.php in Simple Machines Forum (SMF) 1.0.7 and earlier, and 1.1rc2 and earlier, allows remote attackers to more easily spoof the IP address and evade banning via a modified X-Forwarded-For HTTP header, which is preferred instead of other more reliable sources for the IP address.  NOTE: the original researcher claims that the vendor has disputed this issue

## Which versions are affected by CVE-2006-7013?

It affects 1 product.


Products: Simple Machines Simple Machines Forum.

## How do I fix CVE-2006-7013?

No fix has been published for CVE-2006-7013 yet. Limit exposure of the affected software until one is available.

## Is CVE-2006-7013 being exploited?

There is no known exploitation of CVE-2006-7013 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2008-6741](https://insights.sbomify.com/CVE-2008-6741/): SQL injection in n/a (high 7.5)
- [CVE-2008-6544](https://insights.sbomify.com/CVE-2008-6544/): Code injection in n/a (high 7.5)
- [CVE-2008-3072](https://insights.sbomify.com/CVE-2008-3072/): Weak cryptography in n/a (high 7.5)
- [CVE-2008-3073](https://insights.sbomify.com/CVE-2008-3073/): Cross-site scripting in n/a (high 7.5)
- [CVE-2007-3308](https://insights.sbomify.com/CVE-2007-3308/): Security feature bypass in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2006-7013 and fix it if it is affected.

What it is: CVE-2006-7013 is a high-severity vulnerability in n/a, published on 15 Feb 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-2006-7013 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-2006-7013/ (Markdown: https://insights.sbomify.com/CVE-2006-7013/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2006-7013
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2006-7013
- OSV: https://osv.dev/vulnerability/CVE-2006-7013

---
From sbomify Insights: https://insights.sbomify.com/CVE-2006-7013/
Summaries are generated and may contain mistakes; the official description above is the record.