Title: TYPO3 CMS de TYPO3, Description: Usuarios de backend con acceso al Form Framework pudieron usar archivos que no terminaban en .form.yaml como definiciones de formulario, los cuales fueron procesados sin denegar la extensión de archivo incorrecta. Archivos de definición de formulario creados maliciosamente pueden ser usados para ejecutar sentencias SQL arbitrarias, permitiendo a los atacantes escalar privilegios creando cuentas de usuario de backend administrativas. Este problema afecta a las versiones de TYPO3 CMS anteriores a 10.4.57, 11.0.0-11.5.51, 12.0.0-12.4.46, 13.0.0-13.4.31 y 14.0.0-14.3.3.

Backend users with access to the Form Framework were able to use files not ending in .form.yaml as form definitions, which were processed without denying the incorrect file extension. 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, 11.0.0-11.5.51, 12.0.0-12.4.46, 13.0.0-13.4.31 and 14.0.0-14.3.3.

Backend users with access to the Form Framework were able to use files not ending in .form.yaml as form definitions, which were processed without denying the incorrect file extension. 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.

{"timestamp":"2026-06-09T12:53:44.766969Z","id":"CVE-2026-11607","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

[{"vendor":"TYPO3","product":"TYPO3 CMS","defaultStatus":"unaffected","collectionURL":"https://packagist.org","packageName":"typo3/cms-form","modules":["Form"],"repo":"https://github.com/TYPO3/typo3","versions":[{"version":"0","lessThan":"10.4.57","versionType":"semver","status":"affected"},{"version":"11.0.0","lessThan":"11.5.51","versionType":"semver","status":"affected"},{"version":"12.0.0","lessThan":"12.4.46","versionType":"semver","status":"affected"},{"version":"13.0.0","lessThan":"13.4.31","versionType":"semver","status":"affected"},{"version":"14.0.0","lessThan":"14.3.3","versionType":"semver","status":"affected"}]}]

Backend users with access to the Form Framework were able to use files not ending in .form.yaml as form definitions, which were processed without denying the incorrect file extension. 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, 11.0.0-11.5.51, 12.0.0-12.4.46, 13.0.0-13.4.31 and 14.0.0-14.3.3.

AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CWE-862

https://github.com/TYPO3/typo3/commit/040d50d082a01f9e8bd113effd91290a9bb3b69e

https://github.com/TYPO3/typo3/commit/50974c658f647f1aece347b5d6d5acc3c87f2dca

https://typo3.org/security/advisory/typo3-core-sa-2026-019