High severity · published Jul 9, 2026
CVE-2026-55212
Pimcore: Insufficient Permission Check on Class Definition Creation Endpoint Allows Privilege Escalation
7.1
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PI
pimcore · pimcore
>= 2026.1.0, < 2026.1.6; < 2025.4.6 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-55212
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-55212
github.com
https://github.com/pimcore/pimcore/security/advisories/GHSA-f97c-ph8j-8vff
github.com
https://github.com/pimcore/studio-backend-bundle/commit/d1a4788c0f159c360d550c34256c8abbbd633ae0
github.com
https://github.com/pimcore/studio-backend-bundle/pull/1886
github.com
https://github.com/pimcore/studio-backend-bundle/releases/tag/v2025.4.6
github.com
https://github.com/pimcore/studio-backend-bundle/releases/tag/v2026.1.6
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