# GHSA-gj48-w74w-8gvm: Path Traversal in TYPO3 Core

> Attackers can bypass directory traversal checks via invalid UTF-8 sequences to read or modify files in TYPO3 Core.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 22 Feb 2024

## What is GHSA-gj48-w74w-8gvm?

GHSA-gj48-w74w-8gvm is a path traversal vulnerability in typo3/cms, published on 22 Feb 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Due to a too loose type check in an API method, attackers could bypass the directory traversal check by providing an invalid UTF-8 encoding sequence.

## Which versions are affected by GHSA-gj48-w74w-8gvm?

6 open source packages ship an affected version, including typo3/cms.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `typo3/cms` | Packagist | From 6.2.0 | 6.2.29 |
| `typo3/cms` | Packagist | From 6.2.0 | 6.2.29 |
| `typo3/cms` | Packagist | From 7.6.0 | 7.6.13 |
| `typo3/cms` | Packagist | From 7.6.0 | 7.6.13 |
| `typo3/cms` | Packagist | From 8.0.0 | 8.4.1 |
| `typo3/cms` | Packagist | From 8.0.0 | 8.4.1 |

## How do I fix GHSA-gj48-w74w-8gvm?

Upgrade typo3/cms to a fixed version for your release line: 6.2.29, 7.6.13 or 8.4.1.

## Is GHSA-gj48-w74w-8gvm being exploited?

There is no known exploitation of GHSA-gj48-w74w-8gvm in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for GHSA-gj48-w74w-8gvm and fix it if it is affected.

What it is: GHSA-gj48-w74w-8gvm is a path traversal vulnerability in typo3/cms, published on 22 Feb 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of GHSA-gj48-w74w-8gvm in the wild and no public exploit code.

Affected packages and fixed versions:
- typo3/cms (Packagist): affected from 6.2.0; fixed in 6.2.29
- typo3/cms (Packagist): affected from 6.2.0; fixed in 6.2.29
- typo3/cms (Packagist): affected from 7.6.0; fixed in 7.6.13
- typo3/cms (Packagist): affected from 7.6.0; fixed in 7.6.13
- typo3/cms (Packagist): affected from 8.0.0; fixed in 8.4.1
- typo3/cms (Packagist): affected from 8.0.0; fixed in 8.4.1

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/GHSA-gj48-w74w-8gvm/ (Markdown: https://insights.sbomify.com/GHSA-gj48-w74w-8gvm/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/GHSA-gj48-w74w-8gvm

---
From sbomify Insights: https://insights.sbomify.com/GHSA-gj48-w74w-8gvm/
Summaries are generated and may contain mistakes; the official description above is the record.