High 7.6Published Jun 9, 2026

CVE-2026-47346TYPO3 CMS - Broken Access Control in Form Framework

Updated under an hour ago (Oct 26, 2026, 6:00 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

Backend users with file write permissions were able to upload form definition files with mixed-case extensions (e.g., .FORM.YAML) to bypass the Form Framework's upload restriction. Maliciously crafted form definition files can be used to execute arbitrary SQL statements, allowing attackers to escalate privileges by creating administrative backend user accounts. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30 and 14.0.0-14.3.2.

CVSS: 7.6 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-178, CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: TYPO3
NVD analysis: Deferred
Record last updated: Jun 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

TYPO3 TYPO3 CMS typo3:cms (from the name)	before 10.4.57; from 11.0.0 before 11.5.51; from 12.0.0 before 12.4.46; from 13.0.0 before 13.4.31; from 14.0.0 before 14.3.3	CNA record

References

References

https://typo3.org/security/advisory/typo3-core-sa-2026-008	vendor-advisory
https://github.com/TYPO3/typo3/commit/2030617e6f273cee7b756c695f0a48a45a31eb47	patch
https://github.com/TYPO3/typo3/commit/eb2b2251d90339d3ab55df3d4c0378ae0c780b45	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.