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CVE-2026-55220— Pimcore Hotspotimage getDataFromResource() unrestricted Serialize::unserialize over object-store column

Quick assessment

Affected
pimcore pimcore
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Pimcore 是一个开源的数据与体验管理平台。在版本 11.5.19、12.3.10 和 2026.1.6 之前， （位于 ）在 JSON 解码失败后，将 对象存储列中的内容直接传递给 ，且未设置允许类（allowed-classes）限制。 攻击者若能通过其他途径将精心构造的 PHP 序列化字节写入该列，则当加载受影响的 DataObject 时，即可实例化可用的类并触发魔法方法（magic methods），进而通过内置的“小工具链”（gadget chains）实现任意文件写入或代码执行。 相关的 Imag

CVSS 9.3 · Critical

Affected Version Matrix 3

VendorProduct Version RangeStatus
pimcore pimcore < 11.5.19 affected
>= 12.0.0-RC1, < 12.3.10 affected
>= 2026.1.0, < 2026.1.6 affected
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I. Basic Information for CVE-2026-55220

Vulnerability Information
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Vulnerability Title
Pimcore Hotspotimage getDataFromResource() unrestricted Serialize::unserialize over object-store column
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
pimcore pimcore < 11.5.19 -

II. Public POCs for CVE-2026-55220

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III. Intelligence Information for CVE-2026-55220

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Patches & Fixes for CVE-2026-55220 (2)

Vendor Advisories for CVE-2026-55220 (1)

Vendor Pages for CVE-2026-55220 (2)

IV. Related Vulnerabilities

Same product: pimcore
Same vendor: pimcore
Same weakness: CWE-502

V. Comments for CVE-2026-55220

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