Vulnerability advisory

GHSA-hwvq-2w67-rvxp

TYPO3 CMS has Broken Access Control in its Form Framework

Published Jun 12, 2026Updated Sep 10, 2026OSV record ↗

Also known as CVE-2026-47346

Severity

CVSS 4.0CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Affected versions

typo3/cms-core Packagist

All typo3/cms-core advisories →

Affected	Fixed in
All versions before 10.4.57	`10.4.57`Advisories →
Also listed as affected (110) `v10.0.0` `v10.1.0` `v10.2.0` `v10.2.1` `v10.2.2` `v10.3.0` `v10.4.0` `v10.4.1` `v10.4.10` `v10.4.11` `v10.4.12` `v10.4.13` `v10.4.14` `v10.4.15` `v10.4.16` `v10.4.17` `v10.4.18` `v10.4.19` `v10.4.2` `v10.4.20` `v10.4.21` `v10.4.22` `v10.4.23` `v10.4.24` `v10.4.25` `v10.4.26` `v10.4.27` `v10.4.28` `v10.4.29` `v10.4.3` `v10.4.30` `v10.4.31` `v10.4.32` `v10.4.33` `v10.4.34` `v10.4.36` `v10.4.37` `v10.4.4` `v10.4.5` `v10.4.6` `v10.4.7` `v10.4.8` `v10.4.9` `v8.7.10` `v8.7.11` `v8.7.12` `v8.7.13` `v8.7.14` `v8.7.15` `v8.7.16` `v8.7.17` `v8.7.18` `v8.7.19` `v8.7.20` `v8.7.21` `v8.7.22` `v8.7.23` `v8.7.24` `v8.7.25` `v8.7.26` `v8.7.27` `v8.7.28` `v8.7.29` `v8.7.30` `v8.7.31` `v8.7.32` `v8.7.7` `v8.7.8` `v8.7.9` `v9.0.0` `v9.1.0` `v9.2.0` `v9.2.1` `v9.3.0` `v9.3.1` `v9.3.2` `v9.3.3` `v9.4.0` `v9.5.0` `v9.5.1` `v9.5.10` `v9.5.11` `v9.5.12` `v9.5.13` `v9.5.14` `v9.5.15` `v9.5.16` `v9.5.17` `v9.5.18` `v9.5.19` `v9.5.2` `v9.5.20` `v9.5.21` `v9.5.22` `v9.5.23` `v9.5.24` `v9.5.25` `v9.5.26` `v9.5.27` `v9.5.28` `v9.5.29` `v9.5.3` `v9.5.30` `v9.5.31` `v9.5.4` `v9.5.5` `v9.5.6` `v9.5.7` `v9.5.8` `v9.5.9`
`11.0.0` to before 11.5.51	`11.5.51`Advisories →
Also listed as affected (51) `v11.0.0` `v11.1.0` `v11.1.1` `v11.2.0` `v11.3.0` `v11.3.1` `v11.3.2` `v11.3.3` `v11.4.0` `v11.5.0` `v11.5.1` `v11.5.10` `v11.5.11` `v11.5.12` `v11.5.13` `v11.5.14` `v11.5.15` `v11.5.16` `v11.5.17` `v11.5.18` `v11.5.19` `v11.5.2` `v11.5.20` `v11.5.21` `v11.5.22` `v11.5.23` `v11.5.24` `v11.5.25` `v11.5.26` `v11.5.27` `v11.5.28` `v11.5.29` `v11.5.3` `v11.5.30` `v11.5.31` `v11.5.32` `v11.5.33` `v11.5.34` `v11.5.35` `v11.5.36` `v11.5.37` `v11.5.38` `v11.5.39` `v11.5.4` `v11.5.40` `v11.5.41` `v11.5.5` `v11.5.6` `v11.5.7` `v11.5.8` `v11.5.9`
`12.0.0` to before 12.4.46	`12.4.46`Advisories →
Also listed as affected (53) `v12.0.0` `v12.1.0` `v12.1.1` `v12.1.2` `v12.1.3` `v12.2.0` `v12.3.0` `v12.4.0` `v12.4.1` `v12.4.10` `v12.4.11` `v12.4.12` `v12.4.13` `v12.4.14` `v12.4.15` `v12.4.16` `v12.4.17` `v12.4.18` `v12.4.19` `v12.4.2` `v12.4.20` `v12.4.21` `v12.4.22` `v12.4.23` `v12.4.24` `v12.4.25` `v12.4.26` `v12.4.27` `v12.4.28` `v12.4.29` `v12.4.3` `v12.4.30` `v12.4.31` `v12.4.32` `v12.4.33` `v12.4.34` `v12.4.35` `v12.4.36` `v12.4.37` `v12.4.38` `v12.4.39` `v12.4.4` `v12.4.40` `v12.4.41` `v12.4.42` `v12.4.43` `v12.4.44` `v12.4.45` `v12.4.5` `v12.4.6` `v12.4.7` `v12.4.8` `v12.4.9`
`13.0.0` to before 13.4.31	`13.4.31`Advisories →
Also listed as affected (39) `v13.0.0` `v13.0.1` `v13.1.0` `v13.1.1` `v13.2.0` `v13.2.1` `v13.3.0` `v13.3.1` `v13.4.0` `v13.4.1` `v13.4.10` `v13.4.11` `v13.4.12` `v13.4.13` `v13.4.14` `v13.4.15` `v13.4.16` `v13.4.17` `v13.4.18` `v13.4.19` `v13.4.2` `v13.4.20` `v13.4.21` `v13.4.22` `v13.4.23` `v13.4.24` `v13.4.25` `v13.4.26` `v13.4.27` `v13.4.28` `v13.4.29` `v13.4.3` `v13.4.30` `v13.4.4` `v13.4.5` `v13.4.6` `v13.4.7` `v13.4.8` `v13.4.9`
`14.0.0` to before 14.3.3	`14.3.3`Advisories →
Also listed as affected (9) `v14.0.0` `v14.0.1` `v14.0.2` `v14.1.0` `v14.1.1` `v14.2.0` `v14.3.0` `v14.3.1` `v14.3.2`

typo3/cms-form Packagist

All typo3/cms-form advisories →

Affected	Fixed in
All versions before 10.4.57	`10.4.57`Advisories →
Also listed as affected (110) `v10.0.0` `v10.1.0` `v10.2.0` `v10.2.1` `v10.2.2` `v10.3.0` `v10.4.0` `v10.4.1` `v10.4.10` `v10.4.11` `v10.4.12` `v10.4.13` `v10.4.14` `v10.4.15` `v10.4.16` `v10.4.17` `v10.4.18` `v10.4.19` `v10.4.2` `v10.4.20` `v10.4.21` `v10.4.22` `v10.4.23` `v10.4.24` `v10.4.25` `v10.4.26` `v10.4.27` `v10.4.28` `v10.4.29` `v10.4.3` `v10.4.30` `v10.4.31` `v10.4.32` `v10.4.33` `v10.4.34` `v10.4.36` `v10.4.37` `v10.4.4` `v10.4.5` `v10.4.6` `v10.4.7` `v10.4.8` `v10.4.9` `v8.7.10` `v8.7.11` `v8.7.12` `v8.7.13` `v8.7.14` `v8.7.15` `v8.7.16` `v8.7.17` `v8.7.18` `v8.7.19` `v8.7.20` `v8.7.21` `v8.7.22` `v8.7.23` `v8.7.24` `v8.7.25` `v8.7.26` `v8.7.27` `v8.7.28` `v8.7.29` `v8.7.30` `v8.7.31` `v8.7.32` `v8.7.7` `v8.7.8` `v8.7.9` `v9.0.0` `v9.1.0` `v9.2.0` `v9.2.1` `v9.3.0` `v9.3.1` `v9.3.2` `v9.3.3` `v9.4.0` `v9.5.0` `v9.5.1` `v9.5.10` `v9.5.11` `v9.5.12` `v9.5.13` `v9.5.14` `v9.5.15` `v9.5.16` `v9.5.17` `v9.5.18` `v9.5.19` `v9.5.2` `v9.5.20` `v9.5.21` `v9.5.22` `v9.5.23` `v9.5.24` `v9.5.25` `v9.5.26` `v9.5.27` `v9.5.28` `v9.5.29` `v9.5.3` `v9.5.30` `v9.5.31` `v9.5.4` `v9.5.5` `v9.5.6` `v9.5.7` `v9.5.8` `v9.5.9`
`11.0.0` to before 11.5.51	`11.5.51`Advisories →
Also listed as affected (51) `v11.0.0` `v11.1.0` `v11.1.1` `v11.2.0` `v11.3.0` `v11.3.1` `v11.3.2` `v11.3.3` `v11.4.0` `v11.5.0` `v11.5.1` `v11.5.10` `v11.5.11` `v11.5.12` `v11.5.13` `v11.5.14` `v11.5.15` `v11.5.16` `v11.5.17` `v11.5.18` `v11.5.19` `v11.5.2` `v11.5.20` `v11.5.21` `v11.5.22` `v11.5.23` `v11.5.24` `v11.5.25` `v11.5.26` `v11.5.27` `v11.5.28` `v11.5.29` `v11.5.3` `v11.5.30` `v11.5.31` `v11.5.32` `v11.5.33` `v11.5.34` `v11.5.35` `v11.5.36` `v11.5.37` `v11.5.38` `v11.5.39` `v11.5.4` `v11.5.40` `v11.5.41` `v11.5.5` `v11.5.6` `v11.5.7` `v11.5.8` `v11.5.9`
`12.0.0` to before 12.4.46	`12.4.46`Advisories →
Also listed as affected (53) `v12.0.0` `v12.1.0` `v12.1.1` `v12.1.2` `v12.1.3` `v12.2.0` `v12.3.0` `v12.4.0` `v12.4.1` `v12.4.10` `v12.4.11` `v12.4.12` `v12.4.13` `v12.4.14` `v12.4.15` `v12.4.16` `v12.4.17` `v12.4.18` `v12.4.19` `v12.4.2` `v12.4.20` `v12.4.21` `v12.4.22` `v12.4.23` `v12.4.24` `v12.4.25` `v12.4.26` `v12.4.27` `v12.4.28` `v12.4.29` `v12.4.3` `v12.4.30` `v12.4.31` `v12.4.32` `v12.4.33` `v12.4.34` `v12.4.35` `v12.4.36` `v12.4.37` `v12.4.38` `v12.4.39` `v12.4.4` `v12.4.40` `v12.4.41` `v12.4.42` `v12.4.43` `v12.4.44` `v12.4.45` `v12.4.5` `v12.4.6` `v12.4.7` `v12.4.8` `v12.4.9`
`13.0.0` to before 13.4.31	`13.4.31`Advisories →
Also listed as affected (38) `v13.0.0` `v13.0.1` `v13.1.0` `v13.1.1` `v13.2.1` `v13.3.0` `v13.3.1` `v13.4.0` `v13.4.1` `v13.4.10` `v13.4.11` `v13.4.12` `v13.4.13` `v13.4.14` `v13.4.15` `v13.4.16` `v13.4.17` `v13.4.18` `v13.4.19` `v13.4.2` `v13.4.20` `v13.4.21` `v13.4.22` `v13.4.23` `v13.4.24` `v13.4.25` `v13.4.26` `v13.4.27` `v13.4.28` `v13.4.29` `v13.4.3` `v13.4.30` `v13.4.4` `v13.4.5` `v13.4.6` `v13.4.7` `v13.4.8` `v13.4.9`
`14.0.0` to before 14.3.3	`14.3.3`Advisories →
Also listed as affected (9) `v14.0.0` `v14.0.1` `v14.0.2` `v14.1.0` `v14.1.1` `v14.2.0` `v14.3.0` `v14.3.1` `v14.3.2`

Description

Problem

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.

Solution

Update to TYPO3 versions 10.4.57 ELTS, 11.5.51 ELTS, 12.4.46 ELTS, 13.4.31 LTS, 14.3.3 LTS that fix the problem described.

Credits

TYPO3 CMS thanks Alexander Künzl for reporting this issue, and to TYPO3 core & security team members Oliver Hader and Benjamin Franzke for fixing it.

Resources

TYPO3-CORE-SA-2026-008