Missing Authorization

Overview typo3/cms-form is a Form Library, Plugin and Editor Affected versions of this package are vulnerable to Missing Authorization in the processing of form definition files by the Form Framework. An attacker can gain administrative privileges by uploading and using maliciously crafted files...

CVE-2026-47346

Summary: CVE-2026-47346 affects TYPO3 CMS prior to certain patch versions, where backend users with file write perms can upload form definition files with mixed-case extensions (e.g., .FORM.YAML) to bypass upload restrictions. This can be exploited to execute arbitrary SQL statements and escalate...

CVE-2026-47346: Improper Handling of Case Sensitivity

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...