CVE-2026-48010

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.

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.

The application assigns, modifies, tracks, or checks privileges incorrectly, allowing a user to gain elevated access. Typical impact: privilege escalation beyond the intended level.

CVE-2026-48010 has a CVSS score of 6.5 (Medium). The vector is network-reachable, high privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (6.7.10.1, 6.6.10.18); upgrading removes the vulnerable code path.

Kodem intelligence

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

1. What is CVE-2026-48010? CVE-2026-48010 is a medium-severity improper privilege management vulnerability in shopware/platform (composer), affecting versions >= 6.7.0.0, < 6.7.10.1. It is fixed in 6.7.10.1, 6.6.10.18. The application assigns, modifies, tracks, or checks privileges incorrectly, allowing a user to gain elevated access.
2. How severe is CVE-2026-48010? CVE-2026-48010 has a CVSS score of 6.5 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which packages are affected by CVE-2026-48010?
   • shopware/platform (composer) (versions >= 6.7.0.0, < 6.7.10.1)
   • shopware/core (composer) (versions >= 6.7.0.0, < 6.7.10.1)
4. Is there a fix for CVE-2026-48010? Yes. CVE-2026-48010 is fixed in 6.7.10.1, 6.6.10.18. Upgrade to this version or later.
5. Is CVE-2026-48010 exploitable, and should I be worried? Whether CVE-2026-48010 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2026-48010 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2026-48010?
   • Upgrade shopware/platform to 6.7.10.1 or later
   • Upgrade shopware/platform to 6.6.10.18 or later
   • Upgrade shopware/core to 6.7.10.1 or later
   • Upgrade shopware/core to 6.6.10.18 or later