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CVE-2025-59020

6.5 · MEDIUM

By exploiting the defVals parameter, attackers could bypass field‑level access checks during record creation in the TYPO3 backend.

Published Jan 13, 2026CWE-863EPSS 0.31%

Overview

CVE-2025-59020 is a medium-severity vulnerability. It was published on January 13, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

By exploiting the defVals parameter, attackers could bypass field‑level access checks during record creation in the TYPO3 backend. This gave them the ability to insert arbitrary data into prohibited exclude fields of a database table for which the user already has write permission for a reduced set of fields. This issue affects TYPO3 CMS versions 10.0.0-10.4.54, 11.0.0-11.5.48, 12.0.0-12.4.40, 13.0.0-13.4.22 and 14.0.0-14.0.1.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/TYPO3/typo3/commit/ac3f792bd5ab7c58153fc1075cb9e001c9cebe3bGitHubgithub.com/TYPO3/typo3/commit/cd11a19958d823d12d028f9345b41739c7e70118GitHubgithub.com/TYPO3/typo3/commit/fb98378a8fd30dd50d89a3d1a420780819f38232Reftypo3.org/security/advisory/typo3-core-sa-2026-001

How CyberStrike helps

Frequently asked questions

What is CVE-2025-59020?

CVE-2025-59020 is a medium-severity vulnerability. It was published on January 13, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-59020?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-59020?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-59020?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-59020 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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