Improper privilege management in Shopware - #VU131949
Published: May 20, 2026
Vulnerability identifier: #VU131949
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-269
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Shopware
Affected software:
Shopware
Shopware
Detailed vulnerability description
The vulnerability allows a remote user to escalate privileges.
The vulnerability exists due to improper privilege management in UserController::upsertUser() when handling API requests to create or update users. A remote privileged user can set the admin field to true on a new or existing user account to escalate privileges.
The issue occurs because user data is written in SYSTEM_SCOPE, which bypasses AclWriteValidator checks for the admin field.
Remediation
Install security update from vendor's website.