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CVE-2026-47346

TYPO3 CMS - Broken Access Control in Form Framework

HIGH
7.6
CVSS Score
Published: June 9, 2026 at 10:50 AM UTC
Updated: July 23, 2026 at 07:32 PM UTC
1 product affected across 1 vendorTYPO3

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Severity
HIGH7.6
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

TYPO3· TYPO3composer
95%
v < 10.4.5711.0.0 ≤ v < 11.5.5112.0.0 ≤ v < 12.4.4613.0.0 ≤ v < 13.4.3114.0.0 ≤ v < 14.3.311.0.012.0.013.0.014.0.0
Affected range stops below 10.4.57, so it looks safe — our inference, not a vendor statement
Affected range stops below 11.5.51, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.4.46, so it looks safe — our inference, not a vendor statement
Affected range stops below 13.4.31, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.3.3, so it looks safe — our inference, not a vendor statement

References (3)

Vendor Advisory
Source: cverecord
https://typo3.org/security/advisory/typo3-core-sa-2026-008
Patch
Source: cverecord
https://github.com/TYPO3/typo3/commit/2030617e6f273cee7b756c695f0a48a45a31eb47
Patch
Source: cverecord
https://github.com/TYPO3/typo3/commit/eb2b2251d90339d3ab55df3d4c0378ae0c780b45

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.6HIGHTYPO3
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-178CWE-862

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