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🛡️ CVE-2026-48010 — core

🟡 CVSS 6.5 — Medium ✅ No Known Exploit CWE-269 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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:

```php

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:

```php

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:

```php

$source = $context->getSource();

if ((!$source instanceof AdminApiSource) || (!$source->isAdmin() && isset($data['admin']))) {

throw new PermissionDeniedException();

}

```

Best regards,

Keyvan Hardani

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs administrative privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: High — administrative rights are needed first.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: None.

Weakness class

CVE-2026-48010 is classified as CWE-269: Improper Privilege Management. Privileges are assigned, dropped or restored incorrectly, leaving an actor with more access than intended.

Affected software

CVE-2026-48010 is recorded against 3 packages.

  • shopware/core (fixed in 6.6.10.18)
  • shopware/platform (fixed in 6.6.10.18)
  • unknown

Timeline and source

Published on 4 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com (Web)
github.com (Package)
github.com (Web)
github.com (Web)

Other advisories for this package

shopware/core has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-269: Improper Privilege Management) in other software:

Details

Severity Medium
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
CWE CWE-269
Public Exploit ✅ No
Source NVD
Published 2026-06-04
Updated 2026-08-20
Modified 2026-06-04
Fix URL N/A

Affected Packages

Software From version Fixed in
shopware/core — 6.6.10.18
shopware/platform — 6.6.10.18
unknown — —

Similar Threats

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