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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Pimcore公司开源的一款企业级内容管理平台。 Pimcore 11.5.19之前版本、12.3.10之前版本和2026.1.6之前版本存在反序列化注入漏洞，该漏洞源于JSON解码失败后将__hotspots对象存储列传递给unserialize()时未限制允许的类，攻击者可向该列写入特制PHP序列化字节，在加载受影响DataObject时实例化可用类并触发魔术方法，可能导致任意文件写入或代码执行。

CVSS 9.3 · Critical EPSS 0.68% · P51

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
Vulnerability Title
Pimcore 反序列化注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Pimcore是Pimcore公司开源的一款企业级内容管理平台。 Pimcore 11.5.19之前版本、12.3.10之前版本和2026.1.6之前版本存在反序列化注入漏洞，该漏洞源于JSON解码失败后将__hotspots对象存储列传递给unserialize()时未限制允许的类，攻击者可向该列写入特制PHP序列化字节，在加载受影响DataObject时实例化可用类并触发魔术方法，可能导致任意文件写入或代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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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