Improper Access Control in Contao Open Source CMS
CVE-2025-57758

4.3MEDIUM

Key Information:

Vendor

Contao

Status
Contao
Vendor
CVE Published:
28 August 2025

What is CVE-2025-57758?

The Contao Open Source CMS, in versions from 5.0.0 until 5.3.37 and 5.6.0, contains a vulnerability in the back-end's table access voter. This deficiency allows users to potentially access modules without the necessary permissions. A patch was issued in versions 5.3.38 and 5.6.1 to address this issue. Administrators are advised not to rely solely on the voter for access control but also implement additional checks such as USER_CAN_ACCESS_MODULE to enhance security.

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Deploy the Patch

Affected Version(s)

contao >= 5.0.0, < 5.3.38 < 5.0.0, 5.3.38

contao >= 5.4.0-RC1, < 5.6.1 < 5.4.0-RC1, 5.6.1

References

https://github.com/contao/contao/security/advisories/GHSA...
x_refsource_CONFIRM
https://github.com/contao/contao/commit/3f05c603e1c94d348...
x_refsource_MISC
https://contao.org/en/security-advisories/improper-access...
x_refsource_MISC

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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