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CVE-2026-55212— Pimcore: Insufficient Permission Check on Class Definition Creation Endpoint Allows Privilege Escalation

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 2025.4.6之前版本和2026.1.6之前版本存在授权问题漏洞，该漏洞源于Studio API类定义创建端点使用对象权限而非类权限，且缺少API层UID格式验证，可能导致标准编辑器级别用户无需管理员权限即可创建类定义，以及格式错误的UID到达模型层验证并返回内部异常。

CVSS 7.1 · High EPSS 0.35% · P26

Affected Version Matrix 2

VendorProduct Version RangeStatus
pimcore pimcore >= 2026.1.0, < 2026.1.6 affected
< 2025.4.6 affected
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I. Basic Information for CVE-2026-55212

Vulnerability Information
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Vulnerability Title
Pimcore: Insufficient Permission Check on Class Definition Creation Endpoint Allows Privilege Escalation
Source: CVE Program / CVE List V5
Vulnerability Description
Pimcore is an Open Source Data & Experience Management Platform. Prior to 2025.4.6 and 2026.1.6, the Studio API class definition creation endpoint POST /pimcore-studio/api/class/definition/configuration-view/detail/create is guarded by the objects permission instead of the classes permission, allowing a standard editor-level user to create class definitions without admin privileges. Class definition creation generates new database tables and PHP class files on the server, and missing API-layer UID format validation allows malformed UIDs to reach model-layer validation and return internal exceptions. This issue is fixed in versions 2025.4.6 and 2026.1.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
pimcore 授权问题漏洞
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 2025.4.6之前版本和2026.1.6之前版本存在授权问题漏洞，该漏洞源于Studio API类定义创建端点使用对象权限而非类权限，且缺少API层UID格式验证，可能导致标准编辑器级别用户无需管理员权限即可创建类定义，以及格式错误的UID到达模型层验证并返回内部异常。
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 >= 2026.1.0, < 2026.1.6 -

II. Public POCs for CVE-2026-55212

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8508 chars
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III. Intelligence Information for CVE-2026-55212

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Patches & Fixes for CVE-2026-55212 (3)

Vendor Advisories for CVE-2026-55212 (1)

Vendor Pages for CVE-2026-55212 (1)

Same Patch Batch · pimcore · 2026-07-09 · 3 CVEs total

CVE-2026-55207 8.8 HIGH Pimcore: Account Takeover via Password Reset URL Injection allows unauthenticated attacker
CVE-2026-55208 7.7 HIGH Pimcore: SQL Injection via Column Name in DateFilter allows authenticated user to extract

IV. Related Vulnerabilities

Same product: pimcore
Same vendor: pimcore
Same weakness: CWE-285

V. Comments for CVE-2026-55212

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