Information Disclosure in Contao Open Source CMS
CVE-2025-57756

5.3MEDIUM

Key Information:

Vendor

Contao

Status
Contao
Vendor
CVE Published:
28 August 2025

What is CVE-2025-57756?

Contao is an open-source content management system (CMS) that has a vulnerability allowing protected content elements to be indexed and thus publicly accessible through the front-end search feature. This issue affects several versions of the software, specifically those from 4.9.14 up to and including 4.13.56, 5.3.38, and 5.6.1. The vulnerability, which could lead to unauthorized exposure of sensitive information, has been addressed in subsequent releases. Users are encouraged to update to the latest versions or disable the front-end search as a temporary workaround to protect their content.

Affected Version(s)

contao >= 4.9.14, < 4.13.56 < 4.9.14, 4.13.56

contao >= 5.0.0-RC1, < 5.3.38 < 5.0.0-RC1, 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/a03976c459b6f3985...
x_refsource_MISC
https://contao.org/en/security-advisories/information-dis...
x_refsource_MISC

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2025-57756 : Information Disclosure in Contao Open Source CMS