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High

Contao Core directory traversal vulnerability

  • Disclosed: 13.05.2022
  • Updated: 11.10.2026 10:22

A logged in back end user can include arbitrary PHP files by manipulating an URL parameter. Since Contao does not allow to upload PHP files in the file manager, the attack is limited to the existing PHP files on the server.

Affected software

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PlatformPackageVulnerable versionsFixed in
Composer package contao/contao >= 4.0.0, < 4.4.1 4.4.1
Composer package contao/core >= 3.0.0, < 3.5.28 3.5.28
Composer package contao/core-bundle >= 4.0.0, < 4.4.1 4.4.1

References

CVSS score 8.8/10
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-22
Platform
Composer
Package
contao/contao, contao/core, contao/core-bundle
Disclosed
13.05.2022
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-x5g4-crxq-qxjx - CC BY 4.0

Vulnerability history: contao/contao

All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (25) in the archive
Total entries
25
First → latest
12.2019 09.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 4
  • High 6
  • Medium 12
  • Low 3

Disclosures per year

Severity:
  1. Path traversal vulnerability in the file manager
    High · 8.8 CVE-2023-29200 >= 4.9.0, < 4.9.40, >= 4.13.0, < 4.13.21, >= 5.1.0, < 5.1.4 4.9.40, 4.13.21, 5.1.4
  2. Contao SQL injection in the file manager
    Critical · 9.8 CVE-2019-11512 >= 4.1.0, < 4.4.39, >= 4.5.0, < 4.7.5 4.4.39, 4.7.5
  3. Contao SQL injection in the backend and listing module
    Critical · 9.8 CVE-2017-16558 >= 3.0.0, <= 3.5.30, >= 4.0.0, < 4.4.8 4.4.8
  4. Cross site scripting via canonical tag in Contao
    High · 7.2 CVE-2022-24899 >= 4.13.0, < 4.13.3 4.13.3
  5. Contao CSRF Token Bypass
    High · 8.8 CVE-2019-10642 >= 4.7.0, < 4.7.3 4.7.3
  6. Contao Does Not Invalidate Existing Sessions When Password Changes
    Critical · 9.8 CVE-2019-10641 >= 4.0.0, < 4.4.37, >= 4.5.0, < 4.7.3 4.4.37, 4.7.3
  7. Contao Core directory traversal vulnerability this entry
    High · 8.8 CVE-2017-10993 >= 4.0.0, < 4.4.1 4.4.1
  8. Contao Does Not Expire Tokens Correctly
    Critical · 9.8 CVE-2019-10643 >= 4.7.0, < 4.7.3 4.7.3
  9. Privilege escalation via form generator
    High · 8.0 CVE-2021-37627 >= 4.0.0, < 4.4.56, >= 4.5.0, < 4.9.18, >= 4.10.0, < 4.11.7 4.4.56, 4.9.18, 4.11.7
  10. Unrestricted file uploads in Contao
    High · 8.8 CVE-2019-19745 >= 4.0.0, < 4.4.46, >= 4.5.0, < 4.8.6 4.4.46, 4.8.6

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