CVE-2026-55220

Pimcore is an Open Source Data & Experience Management Platform. Prior to 11.5.19, 12.3.10, and 2026.1.6, Pimcore\Model\DataObject\ClassDefinition\Data\Hotspotimage::getDataFromResource() in models/DataObject/ClassDefinition/Data/Hotspotimage.php passes the field __hotspots object-store column to Pimcore\Tool\Serialize::unserialize() without an allowed-classes restriction after JSON decoding fails. An attacker with a separate capability to write crafted PHP serialized bytes into that column can instantiate available classes and trigger magic methods when an affected DataObject is loaded, which can produce arbitrary file writes or code execution through bundled gadget chains. The related ImageGallery, Block, and Video callers use the same fallback pattern, but the identified June fix changes the Hotspotimage caller only. This issue is fixed for Hotspotimage in versions 11.5.19, 12.3.10, and 2026.1.6.

CVSS

No CVSS.

References

Link	Resource
https://github.com/pimcore/pimcore/commit/b184c01bf11e213e601d965b4e96c8bb7248e980
https://github.com/pimcore/pimcore/pull/19181
https://github.com/pimcore/pimcore/releases/tag/v12.3.10
https://github.com/pimcore/pimcore/releases/tag/v2026.1.6
https://github.com/pimcore/pimcore/security/advisories/GHSA-w23p-wrp7-ch38

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-28 20:18

Updated : 2026-09-09 21:09

NVD link : CVE-2026-55220

Mitre link : CVE-2026-55220

CVE.ORG link : CVE-2026-55220

JSON object : View

Products Affected

No product.

CWE

CWE-502

Deserialization of Untrusted Data

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