What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-04-25 · updated 2026-06-17
• Weakness: CWE-22

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.

Affected products

• contao: from 2.0 before 4.9.40; from 4.10.0 before 4.13.21; from 5.0.0 before 5.1.4 — fixed in 4.13.21, 4.9.40, 5.1.4

How to fix

Upgrade to a fixed version: contao 4.13.21, 4.9.40, 5.1.4. Check the vendor advisory for mitigations.

References

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

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