CVE-2026-55634
Pimcore: Remote Code Execution via DataObject Class-Definition Field Name
- State
- Published
- Severity
- 9.9 Critical
- Published
- Aug 28, 2026
- Updated
- Aug 28, 2026
- Reserved
- Jun 16, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.9 Critical | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | GitHub_M |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
pimcorepimcore |
|
References
- https://github.com/pimcore/pimcore/security/advisories/GHSA-9x44-4gxf-8c25
- https://github.com/pimcore/pimcore/pull/19183
- https://github.com/pimcore/pimcore/commit/a4f8c3cfee58b7d5fe4873d67782eff58dae9b9d
- https://github.com/advisories/GHSA-r2f4-ff2p-xc64
- https://github.com/pimcore/pimcore/releases/tag/v2026.1.6
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