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CVE-2026-45162— Pimcore: Unsafe PHP Deserialization in Multiple Locations Without allowed_classes Restriction

Quick assessment

Affected
pimcore pimcore
Exploitation
Public or AI PoC available; prioritize validation
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公司开源的一套开源的用于创建和管理Web应用程序的Web内容管理平台。该平台集成了Web内容管理、电子商务框架和产品信息管理等应用。 Pimcore 11.5.17版本之前和12.0.0版本至12.3.7版本之前存在反序列化注入漏洞，该漏洞源于在多个位置调用PHP的unserialize()函数时未限制allowed_classes，包括lib/Tool/Authentication.php、models/Site/Dao.php、models/DataObject/Clas

CVSS 8.0 · High EPSS 0.99% · P62

Affected Version Matrix 2

VendorProduct Version RangeStatus
pimcore pimcore < 11.5.17 affected
>= 12.0.0, < 12.3.7 affected
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I. Basic Information for CVE-2026-45162

Vulnerability Information
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Vulnerability Title
Pimcore: Unsafe PHP Deserialization in Multiple Locations Without allowed_classes Restriction
Source: CVE Program / CVE List V5
Vulnerability Description
Pimcore is an Open Source Data & Experience Management Platform. Prior to 11.5.17 (LTS) and 12.3.7, multiple Pimcore locations call PHP's unserialize() on data from database columns and filesystem files without the allowed_classes restriction, including lib/Tool/Authentication.php, models/Site/Dao.php, models/DataObject/ClassDefinition/CustomLayout/Dao.php, models/Tool/TmpStore/Dao.php, models/Asset/WebDAV/Service.php, and admin-ui-classic-bundle/src/Helper/Dashboard.php, enabling object injection and remote code execution if an attacker can control the serialized data source. This issue is fixed in versions 11.5.17 (LTS) and 12.3.7.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
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公司开源的一套开源的用于创建和管理Web应用程序的Web内容管理平台。该平台集成了Web内容管理、电子商务框架和产品信息管理等应用。 Pimcore 11.5.17版本之前和12.0.0版本至12.3.7版本之前存在反序列化注入漏洞，该漏洞源于在多个位置调用PHP的unserialize()函数时未限制allowed_classes，包括lib/Tool/Authentication.php、models/Site/Dao.php、models/DataObject/Clas
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 < 11.5.17 -

II. Public POCs for CVE-2026-45162

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Success marker: VULNERABLE: unsafe unserialize() -> __destruct RCE in Pimcore affected source: RCE as uid 0 root ; proof token exfiltrated: PROOF_02e5ef68250e1b19
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
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claude_code · 11496 chars
GitHub 复现环境（可 clone 直接跑）
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III. Intelligence Information for CVE-2026-45162

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Patches & Fixes for CVE-2026-45162 (2)

Vendor Advisories for CVE-2026-45162 (1)

Vendor Pages for CVE-2026-45162 (1)

Same Patch Batch · pimcore · 2026-07-17 · 5 CVEs total

CVE-2026-44739 8.7 HIGH Pimcore: SQL Injection in Custom Reports Column Configuration
CVE-2026-45260 8.1 HIGH Pimcore: Missing Authorization in WebDAV MOVE via unchecked asset move handling
CVE-2026-45703 6.4 MEDIUM Pimcore: WordExport Authorization Bypass for Unauthorized Document Export
CVE-2026-45704 Pimcore: CustomReports Share Bypass

IV. Related Vulnerabilities

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