Staging Environment: Content and features may be unstable or change without notice.
Advisory details: gitlab / packagist/typo3/cms-backend/CVE-2025-59020
Advisory ID gitlab/packagist/typo3/cms-backend/CVE-2025-59020
Aliases CVE-2025-59020
GHSA-5j7q-wmh7-cqhg
Summary TYPO3 CMS Allows Broken Access Control in Edit Document Controller ### Problem 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. ### Solution Update to TYPO3 versions 10.4.55 ELTS, 11.5.49 ELTS, 12.4.41 LTS, 13.4.23 LTS, 14.0.2 that fix the problem described. ### Credits Thanks to Daniel Windloff for reporting this issue, and to TYPO3 core & security team member Benjamin Franzke for fixing it. ### References * [TYPO3-CORE-SA-2026-001](https://typo3.org/security/advisory/typo3-core-sa-2026-001)
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (3)
CWE-863 Incorrect Authorization
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/typo3/cms-backend/CVE-2025-59020.yml
Reference id Reference type URL
https://github.com/TYPO3/typo3
https://github.com/TYPO3/typo3/commit/ac3f792bd5ab7c58153fc1075cb9e001c9cebe3b
https://github.com/TYPO3/typo3/commit/cd11a19958d823d12d028f9345b41739c7e70118
https://github.com/TYPO3/typo3/commit/fb98378a8fd30dd50d89a3d1a420780819f38232
https://typo3.org/security/advisory/typo3-core-sa-2026-001
CVE-2025-59020 https://nvd.nist.gov/vuln/detail/CVE-2025-59020
GHSA-5j7q-wmh7-cqhg https://github.com/advisories/GHSA-5j7q-wmh7-cqhg
GHSA-5j7q-wmh7-cqhg https://github.com/TYPO3/typo3/security/advisories/GHSA-5j7q-wmh7-cqhg
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L Found at https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/typo3/cms-backend/CVE-2025-59020.yml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-01-13T16:42:25Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2025/59xxx/CVE-2025-59020.json

Source Advisory: vulnrichment/CVE-2025-59020

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]