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CVE-2025-57758

Contao has improper access control in the back end voters

Published: Aug 28, 2025Updated: Sep 2, 2025 Sources: CVE List NVD GHSACWE-284
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
0.2%
Top 87.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-284

Affected Products

contaocontao
On-prem
Web & CMS Plugins / cms-core
contao/core-bundlePackagistOSS Libraries
contao/contaoPackagistOSS Libraries
contaooss-projectDEWeb & CMS Pluginsaka contao cms
packagistpackage-ecosystemOSS Libraries

Exploitability

Official Patch Available

References

https://github.com/contao/contao/security/advisories/GHSA-7m47-r75r-cx8v
github.com
https://github.com/contao/contao/commit/3f05c603e1c94d34819f837f060df5d66447d0d7
github.com
https://contao.org/en/security-advisories/improper-access-control-in-the-back-end-voters
contao.org
and 2 more references View all →

Timeline

Published
Aug 28, 2025
Last Updated
Sep 2, 2025

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