# CVE-2007-4188: Auth bypass in n/a

> Remote attackers can hijack administrative sessions in Joomla via session fixation, requiring user interaction to exploit.

- **Severity:** Critical 9.3 (`AV:N/AC:M/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 8 Aug 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-4883-cvpp-v36g

## What is CVE-2007-4188?

CVE-2007-4188 is a critical authentication bypass vulnerability in Joomla Joomla\!, published on 8 Aug 2007. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Session fixation vulnerability in Joomla! before 1.0.13 (aka Sunglow) allows remote attackers to hijack administrative web sessions via unspecified vectors.

Weakness: CWE-384 (Session Fixation)

## Which versions are affected by CVE-2007-4188?

It affects 1 product.


Products: Joomla Joomla\!.

## How do I fix CVE-2007-4188?

No fix has been published for CVE-2007-4188 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-4188 being exploited?

There is no known exploitation of CVE-2007-4188 in the wild and no public exploit code.

## Other vulnerabilities in Joomla Joomla\!

- [CVE-2016-10033](https://insights.sbomify.com/CVE-2016-10033/): PHPMailer Command Injection (critical 9.8, exploited in the wild)
- [CVE-2023-23752](https://insights.sbomify.com/CVE-2023-23752/): Joomla! Improper Access Control (medium 5.3, exploited in the wild)
- [CVE-2026-48902](https://insights.sbomify.com/CVE-2026-48902/): Joomla! Core - [20260518] - Transport encryption downgrade for password and username reset links (critical 9.8)
- [CVE-2025-25226](https://insights.sbomify.com/CVE-2025-25226/): [20250401] - Joomla Framework - SQL injection vulnerability in quoteNameStr method of Database package (critical 9.8)
- [CVE-2022-23795](https://insights.sbomify.com/CVE-2022-23795/): [20220303] - Core - User row are not bound to a authentication mechanism (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-4188 and fix it if it is affected.

What it is: CVE-2007-4188 is a critical authentication bypass vulnerability in Joomla Joomla\!, published on 8 Aug 2007. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2007-4188 in the wild and no public exploit code.

Affected product: Joomla Joomla\!. 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-2007-4188/ (Markdown: https://insights.sbomify.com/CVE-2007-4188/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-4188
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-4188
- OSV: https://osv.dev/vulnerability/CVE-2007-4188

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-4188/
Summaries are generated and may contain mistakes; the official description above is the record.