Home/CVE/By exploiting the defVals parameter, attackers could bypass field‑level access checks during record creation in the TY
CVE

CVE-2025-59020

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

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.

MEDIUM · CVSS 6.5 EPSS 0.00014
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-863Incorrect Authorization
▤

Affected Products & Versions

5
typo3>= 10.0.0 and < 10.4.55
typo3>= 11.0.0 and < 11.5.49
typo3>= 12.0.0 and < 12.4.41
typo3>= 13.0.0 and < 13.4.23
typo3>= 14.0.0 and < 14.0.2
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Packagist typo3/cms-backend MEDIUM fixed in 14.0.2
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · f4fb688c-4412-4426-b4b8-421ecf27b14a
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Jan 2026 · 12:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/TYPO3/typo3/commit/ac3f792bd5ab7c58153fc1075cb9e001c9cebe3bPatch
https://github.com/TYPO3/typo3/commit/cd11a19958d823d12d028f9345b41739c7e70118Patch
https://github.com/TYPO3/typo3/commit/fb98378a8fd30dd50d89a3d1a420780819f38232Patch
https://typo3.org/security/advisory/typo3-core-sa-2026-001Vendor Advisory
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