# CVE-2013-6129: Missing authorization in n/a

> Remote attackers can create administrative accounts in vBulletin via unprotected install scripts, leading to full system compromise.

- **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:** 19 Oct 2013
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-rj2v-jjj7-r36g

## What is CVE-2013-6129?

CVE-2013-6129 is a high-severity missing authorization vulnerability in Vbulletin Vbulletin, published on 19 Oct 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The install/upgrade.php scripts in vBulletin 4.1 and 5 allow remote attackers to create administrative accounts via the customerid, htmldata[password], htmldata[confirmpassword], and htmldata[email] parameters, as exploited in the wild in October 2013.

Weakness: CWE-264

## Which versions are affected by CVE-2013-6129?

It affects 1 product.


Products: Vbulletin Vbulletin.

## How do I fix CVE-2013-6129?

No fix has been published for CVE-2013-6129 yet. Limit exposure of the affected software until one is available.

## Is CVE-2013-6129 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2013-6129 exists.

Public exploit code:

- vBulletin Administrator Account Creation (metasploit)
- vBulletin 4.1.x - '/install/upgrade.php' Security Bypass (exploitdb)

## Other vulnerabilities in Vbulletin Vbulletin

- [CVE-2020-17496](https://insights.sbomify.com/CVE-2020-17496/): vBulletin PHP Module Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2019-16759](https://insights.sbomify.com/CVE-2019-16759/): vBulletin PHP Module Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2025-48827](https://insights.sbomify.com/CVE-2025-48827/): vBulletin 5.0.0 through 5.7.5 and 6.0.0 through 6.0.3 allows unauthenticated users to invoke protected API controllers' methods when running (critical 10.0)
- [CVE-2023-25135](https://insights.sbomify.com/CVE-2023-25135/): Deserialization in n/a (critical 9.8)
- [CVE-2020-7373](https://insights.sbomify.com/CVE-2020-7373/): Code injection in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2013-6129 and fix it if it is affected.

What it is: CVE-2013-6129 is a high-severity missing authorization vulnerability in Vbulletin Vbulletin, published on 19 Oct 2013. 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-2013-6129 exists.

Affected product: Vbulletin Vbulletin. 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-2013-6129/ (Markdown: https://insights.sbomify.com/CVE-2013-6129/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2013-6129
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2013-6129
- OSV: https://osv.dev/vulnerability/CVE-2013-6129

---
From sbomify Insights: https://insights.sbomify.com/CVE-2013-6129/
Summaries are generated and may contain mistakes; the official description above is the record.