High 7.1Published Jul 9, 2026

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

Updated under an hour ago (Oct 27, 2026, 12:00 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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: 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Weakness (CWE): CWE-285
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jul 10, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

pimcore pimcore pimcore:pimcore (from the name)	from 2026.1.0, < 2026.1.6; before 2025.4.6	CNA record

References

References

https://github.com/pimcore/pimcore/security/advisories/GHSA-f97c-ph8j-8vff	x-refsource-confirm
https://github.com/pimcore/studio-backend-bundle/pull/1886	x-refsource-misc
https://github.com/pimcore/studio-backend-bundle/commit/d1a4788c0f159c360d550c34256c8abbbd633ae0	x-refsource-misc
https://github.com/pimcore/studio-backend-bundle/releases/tag/v2025.4.6	x-refsource-misc
https://github.com/pimcore/studio-backend-bundle/releases/tag/v2026.1.6	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.