Auth bypass in TYPO3
CVE-2025-59020
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (22.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 22.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: -0.000
Affected products
Weakness classification (CWE)
References
- f4fb688c-4412-4426-b4b8-421ecf27b14a (vendor-advisory, Vendor Advisory)
- f4fb688c-4412-4426-b4b8-421ecf27b14a (Patch, patch)
- f4fb688c-4412-4426-b4b8-421ecf27b14a (Patch, patch)
- f4fb688c-4412-4426-b4b8-421ecf27b14a (Patch, patch)
Frequently asked questions
- What is CVE-2025-59020?
- CVE-2025-59020 is a medium-severity vulnerability in TYPO3, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2026-01-13.
- How severe is CVE-2025-59020?
- Medium severity. CVSS v3 base score is 6.5 out of 10.