TI-2025-35643 Aliases CVE-2025-57758 GHSA-7m47-r75r-cx8v

Contao has improper access control in the back end voters

LOW 20CWE-284Published 2025-08-28 · Updated 2025-08-28

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: None · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-284.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00257 17th percentileScored 2026-11-07

Fix Fixed contao (contao): 5.3.38, 5.6.1contao/core-bundle (Packagist): 5.3.38, 5.6.1+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
contao	contao	5.0.0 to before 5.3.38; 5.4.0-RC1 to before 5.6.1	5.3.38, 5.6.1	Patch available	CNA
—	contao/core-bundle (Packagist)	5.0.0 to before 5.3.38	5.3.38	Patch available	GHSA-7m47-r75r-cx8v
—	contao/core-bundle (Packagist)	5.4.0-RC1 to before 5.6.1	5.6.1	Patch available	GHSA-7m47-r75r-cx8v
—	contao/contao (Packagist)	5.0.0 to before 5.3.38	5.3.38	Patch available	GHSA-7m47-r75r-cx8v
—	contao/contao (Packagist)	5.4.0-RC1 to before 5.6.1	5.6.1	Patch available	GHSA-7m47-r75r-cx8v

contao Vendorcontao Affected 5.0.0 to before 5.3.38; 5.4.0-RC1 to before 5.6.1 Fixed in 5.3.38, 5.6.1 Patch available CNA
contao/core-bundle (Packagist) Vendor— Affected 5.0.0 to before 5.3.38 Fixed in 5.3.38 Patch available GHSA-7m47-r75r-cx8v
contao/core-bundle (Packagist) Vendor— Affected 5.4.0-RC1 to before 5.6.1 Fixed in 5.6.1 Patch available GHSA-7m47-r75r-cx8v
contao/contao (Packagist) Vendor— Affected 5.0.0 to before 5.3.38 Fixed in 5.3.38 Patch available GHSA-7m47-r75r-cx8v
contao/contao (Packagist) Vendor— Affected 5.4.0-RC1 to before 5.6.1 Fixed in 5.6.1 Patch available GHSA-7m47-r75r-cx8v

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:contao:contao::::::::	5.3.0 to before 5.3.38; 5.4.0 to before 5.6.1	Vulnerable	contao

cpe:2.3:a:contao:contao:*:*:*:*:*:*:*:* Versions 5.3.0 to before 5.3.38; 5.4.0 to before 5.6.1 Vulnerable ·contao

Remediation

Fix · CNA contao (contao) Fixed in 5.3.38, 5.6.1
Fix · GHSA-7m47-r75r-cx8v contao/core-bundle (Packagist) Fixed in 5.3.38 Advisory →
Fix · GHSA-7m47-r75r-cx8v contao/core-bundle (Packagist) Fixed in 5.6.1 Advisory →
Fix · GHSA-7m47-r75r-cx8v contao/contao (Packagist) Fixed in 5.3.38 Advisory →
Fix · GHSA-7m47-r75r-cx8v contao/contao (Packagist) Fixed in 5.6.1 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2025-57758
2026-10-03 Alias added: GHSA-7m47-r75r-cx8v

References

Patch 1

https://github.com/contao/contao/commit/3f05c603e1c94d34819f837f060df5d66447d0d7

Advisory 3

Other 1

https://github.com/contao/contao

TI-2022-09661 Contao Managed Edition v1.5.0 was discovered to contain a remote command execution (RCE)… CVSS 3.1CRITICAL 9.8
TI-2024-30849 Unrestricted file upload in Contao CVSS 3.1MEDIUM 6.4
TI-2023-18600 Contao cross site scripting vulnerability via input unit widget CVSS 3.1MEDIUM 6.5
TI-2022-08709 Cross site scripting via canonical tag CVSS 3.1HIGH 7.2
TI-2019-08602 Contao 4.x allows SQL Injection. CVSS 3.0CRITICAL 9.8
TI-2024-30447 Remote command execution through file upload in contao/core-bundle CVSS 3.1HIGH 8.8

See all 31 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences