CVE-2026-55634
CriticalCVSS 9.9Summary
Pimcore prior to versions 11.5.19, 12.3.10, and 2026.1.6 has a vulnerability in the class-definition import endpoint where a DataObject field name is emitted without an identifier allowlist, allowing an authenticated user with objects permission to inject PHP syntax into generated DataObject classes and inject SQL identifier content into schema-changing statements. The setName() validation did not reject semicolons, braces, backticks, spaces, or other non-identifier characters.
Risk Assessment
The risk includes arbitrary PHP code execution on the server and modification of database schema, potentially leading to full system compromise and data integrity violation.
Recommendation
It is recommended to immediately update Pimcore to versions 11.5.19, 12.3.10, or 2026.1.6, which contain the fix.
Original NVD description (English source)
Pimcore is an Open Source Data & Experience Management Platform. Prior to 11.5.19, 12.3.10, and 2026.1.6, the class-definition import endpoint /pimcore-studio/api/class/definition/configuration-view/detail/{id}/import accepts a DataObject field name that is emitted without an identifier allowlist by lib/DataObject/ClassBuilder/FieldDefinitionPropertiesBuilder.php into generated PHP properties and by models/DataObject/ClassDefinition/Helper/Dao.php into ALTER TABLE identifiers. An authenticated user with the objects permission can inject PHP syntax into the generated DataObject class, causing attacker-controlled code in generated var/classes/DataObject/.php files to run when an object of that class is instantiated, and can also inject SQL identifier content into schema-changing statements. The central models/DataObject/ClassDefinition/Data.php::setName() validation did not reject semicolons, braces, backticks, spaces, or other non-identifier characters. This issue is fixed in versions 11.5.19, 12.3.10, and 2026.1.6.