Shopware: Privilege escalation: non-admin user with user:create ACL can create admin accounts
UserController::upsertUser() writes user data in SYSTEM_SCOPE and does not filter the admin field. A non-admin API user with user:create or user:update ACL permission can set admin: true on new or existing users, escalating to full admin access.
The Problem
In src/Core/Framework/Api/Controller/UserController.php, line 210-234:
public function upsertUser(?string $userId, Request $request, Context $context, ResponseFactoryInterface $factory): Response
{
$data = $request->request->all(); // raw request data, no field filtering
// ...
$events = $context->scope(Context::SYSTEM_SCOPE, fn (Context $context) =>
$this->userRepository->upsert([$data], $context)
);
}SYSTEM_SCOPE bypasses AclWriteValidator entirely (line 52 of AclWriteValidator::preValidate() returns early for SYSTEM_SCOPE). The admin boolean field is accepted without restriction.
Compare with IntegrationController::upsertIntegration() in the same codebase, which correctly checks:
if ((!$source instanceof AdminApiSource)
|| (!$source->isAdmin()
&& isset($data['admin']))
) {
throw new PermissionDeniedException();
}UserController is missing this exact check.
Impact
Any API user with the low-privilege user:create permission can create accounts with full admin access, or with user:update can promote any existing user to admin. This is a direct privilege escalation.
Suggested Fix
Add the same isAdmin() check from IntegrationController:
$source = $context->getSource();
if ((!$source instanceof AdminApiSource) || (!$source->isAdmin() && isset($data['admin']))) {
throw new PermissionDeniedException();
}Best regards, Keyvan Hardani
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | shopware/core | >= 6.7.0.0, < 6.7.10.1, < 6.6.10.18 | 6.7.10.1, 6.6.10.18 |
| Composer package | shopware/platform | >= 6.7.0.0, < 6.7.10.1, < 6.6.10.18 | 6.7.10.1, 6.6.10.18 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N- Weakness (CWE)
CWE-269- Platform
- Composer
- Package
shopware/core, shopware/platform- Disclosed
- 04.06.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-v39m-97p8-gqg7 - CC BY 4.0
Vulnerability history: shopware/core
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 65
- First → latest
- 09.2020 06.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 5
- High 16
- Medium 31
- Low 13
Disclosures per year
- 2020: 7
- 2021: 13
- 2022: 7
- 2023: 6
- 2024: 7
- 2025: 12
- 2026: 13
-
Shopware: Privilege escalation: non-admin user with user:create ACL can create admin accounts this entry
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