CVE-2025-57758: contao Access Control Flaw — Fix

Description

Contao is an Open Source CMS. In versions starting from 5.0.0 and prior to 5.3.38 and 5.6.1, the table access voter in the back end doesn't check if a user is allowed to access the corresponding module. This issue has been patched in versions 5.3.38 and 5.6.1. A workaround involves not relying solely on the voter and additionally to check USER_CAN_ACCESS_MODULE.

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CVSS v3.1 Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Weakness Type (CWE)

CWE-284 CWE-284

Affected Products

Vendor	Product	Versions
contao	contao	5.3.0 — 5.3.38
contao	contao	5.4.0 — 5.6.1

References

Advisories & Patches

https://contao.org/en/security-advisories/improper-access-control-in-the-back-end-voters https://github.com/contao/contao/commit/3f05c603e1c94d34819f837f060df5d66447d0d7

Other References

https://github.com/contao/contao/security/advisories/GHSA-7m47-r75r-cx8v

Frequently Asked Questions

What is CVE-2025-57758? +

Contao is an Open Source CMS. In versions starting from 5.0.0 and prior to 5.3.38 and 5.6.1, the table access voter in the back end doesn't check if a user is allowed to access the corresponding module. This issue has been patched in versions 5.3.38 and 5.6.1. A workaround involves not relying solely on the voter and additionally to check USER_CAN_ACCESS_MODULE. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2025-57758? +

CVE-2025-57758 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-57758? +

CVE-2025-57758 affects products from contao, specifically: contao. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-57758? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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