PT-2026-46884 · Packagist · Shopware/Core+1

Published

2026-06-04

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Updated

2026-06-04

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CVE-2026-48008

CVSS v3.1

6.5

Medium

VectorAV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Summary

A non-admin API user with integration:create ACL privilege can escalate to full administrator by creating an integration with admin: true through the Sync API (POST /api/ action/sync). The regular integration endpoint (POST /api/integration) correctly blocks this, but the Sync API bypasses the controller-level check by writing directly through the DAL EntityWriter. The integration entity definition lacks WriteProtection, and the admin field has no field-level restriction flag.
OWASP: A01:2021 — Broken Access Control

Root Cause

IntegrationController::upsertIntegration() checks $source->isAdmin() before allowing the admin field to be set. However, SyncController::sync() routes writes through SyncService → EntityWriter, which only applies:
  1. AclWriteValidator — checks entity-level ACL (integration:create is sufficient)
  2. EntityProtectionValidator — checks WriteProtection on entity definitions, but IntegrationDefinition has none
The admin field in IntegrationDefinition is a plain BoolField with no WriteProtection or special flag. The Sync API writes it without restriction.
Vulnerable code path:
  • src/Core/Framework/Api/Controller/SyncController.php → SyncService → EntityWriter::upsert()
  • Missing protection: src/Core/Framework/Integration/IntegrationDefinition.php — admin field has no WriteProtection(Context::SYSTEM SCOPE)
Working protection (bypassed):
  • src/Core/Framework/Integration/IntegrationController.php:46-56 — isAdmin() check only applies to the dedicated controller endpoint

Impact

  • Complete admin API access — the escalated integration has full read/write on every entity: users, customers, orders, system configuration, integrations, plugins
  • PII exfiltration — read all customer records (names, emails, addresses, order history)
  • Persistent backdoor — the admin integration survives password changes and user deactivation

Remediation

Add WriteProtection(Context::SYSTEM SCOPE) to IntegrationDefinition, matching how UserDefinition and AclRoleDefinition are already protected:
// src/Core/Framework/Integration/IntegrationDefinition.php
(new BoolField('admin', 'admin'))
  ->addFlags(new WriteProtection(Context::SYSTEM SCOPE)),

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-48008
GHSA-GV8P-48FR-4FXG

Affected Products

Shopware/Core
Shopware/Platform