dbcve.org
Improper AuthorizationWeakness · CWE-285

CVE-2026-55212

HIGH · 7.1 CVSS v3.1 Published 2026-07-09
Patch available
A vendor patch is available. No clean upgrade release — apply the published patch.
See remediation →
77/100
Remediation priority · High
Remotely reachable Zero-click Patch available 6 weeks old

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-285

The application confirms who you are but does not properly check whether you are permitted to perform a given action, so authenticated users reach functions or data meant for others. Attackers test roles and object references to find the gap. Remediation is an authorization check on every request, evaluated against the acting user's actual permissions.

General guidance for the improper authorization class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Patch available Apply the vendor patch
Vendor patch github.com →
Recommended fix High confidence

Upgrade to pimcore/studio-backend-bundle version 2025.4.6 or 2026.1.6 (choose the version branch compatible with your pimcore installation)

  1. Check the current version of pimcore/studio-backend-bundle in your composer.json or composer.lock file
  2. Run 'composer update pimcore/studio-backend-bundle' to upgrade to the latest version, or specify the version directly: 'composer require pimcore/studio-backend-bundle:2025.4.6' or 'composer require pimcore/studio-backend-bundle:2026.1.6'
  3. Verify the upgrade was successful by running 'composer show pimcore/studio-backend-bundle' and confirming the version number
  4. Clear the application cache if applicable (e.g., bin/console cache:clear for Symfony-based setups)
  5. Test that the class definition creation endpoint now properly requires classes permission instead of objects permission
Caveat Review release notes for any breaking changes between your current version and 2025.4.6/2026.1.6; major version jumps may include configuration or API changes

Generated from the published advisory — verify against the referenced sources before acting.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-55212 in production — separate from our analysis above.

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