What is the CVSS score of CVE-2025-57758?

CVE-2025-57758 has a CVSS 3.1 base score of 4.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of Contao are affected by CVE-2025-57758?

Organizations using versions starting from 5.0.0 and should be aware of moderate risk from CVE-2025-57758, a improper access control vulnerability rated CVSS 4.3.. A patch is available.

How to fix or mitigate CVE-2025-57758?

Within 30 days: Identify affected systems running versions starting from 5.0.0 and and apply vendor patches as part of regular patch cycle. Vendor patch is available.

Contao CVE-2025-57758

MEDIUM

Improper Access Control (CWE-284)

2025-08-28 security-advisories@github.com

Authentication Bypass Contao

4.3

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

4.3 MEDIUM

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

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:09 vuln.today

Patch released

Mar 28, 2026 - 19:09 nvd

Patch available

CVE Published

Aug 28, 2025 - 17:15 nvd

MEDIUM 4.3

DescriptionGitHub Advisory

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.

AnalysisAI

Contao is an Open Source CMS. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity.

Technical ContextAI

This vulnerability is classified under CWE-284. 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. Affected products include: Contao. Version information: prior to 5.3.38.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.