CVE-2026-31887 in Shopware
Summary
by MITRE • 03/11/2026
Shopware is an open commerce platform. Prior to 6.7.8.1 and 6.6.10.15, an insufficient check on the filter types for unauthenticated customers allows access to orders of other customers. This is part of the deepLinkCode support on the store-api.order endpoint. This vulnerability is fixed in 6.7.8.1 and 6.6.10.15.
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Analysis
by VulDB Data Team • 03/17/2026
The vulnerability identified as CVE-2026-31887 affects Shopware commerce platforms, specifically versions prior to 6.7.8.1 and 6.6.10.15, representing a critical authorization flaw that undermines customer data privacy and system integrity. This weakness resides within the store-api.order endpoint's deepLinkCode functionality, which is designed to provide customers with direct access links to their order information. The flaw manifests when unauthenticated customers can exploit insufficient validation mechanisms to access order details belonging to other users, creating a severe data exposure scenario that violates fundamental principles of access control and data segregation.
The technical implementation of this vulnerability stems from inadequate input validation and authorization checks within the deepLinkCode processing logic. When customers attempt to access order information through the store-api.order endpoint, the system fails to properly verify whether the provided deepLinkCode corresponds to the requesting user's own order data. This insufficient validation allows malicious actors or unauthorized users to manipulate the filter parameters and potentially retrieve sensitive order information belonging to different customers. The vulnerability specifically targets the authentication state of users, exploiting the gap between authenticated and unauthenticated access controls within the platform's API layer. This flaw aligns with CWE-285, which addresses insufficient authorization in software systems, and represents a classic case of improper access control that enables unauthorized data disclosure.
The operational impact of this vulnerability extends beyond simple data exposure, creating significant risks for both businesses and their customers. Attackers could exploit this weakness to perform customer data enumeration, potentially gathering sensitive information including purchase history, billing addresses, shipping details, and product preferences. This unauthorized access capability could facilitate more sophisticated attacks such as account takeover attempts, social engineering campaigns, or even targeted phishing operations leveraging the collected order information. The vulnerability affects all unauthenticated customers who interact with the store-api.order endpoint, making it particularly dangerous as it requires no valid credentials to exploit. From an attack perspective, this vulnerability maps to ATT&CK technique T1071.004, which covers application layer protocol traffic, and T1566, which involves phishing attacks, as the exposed order information could be used to craft convincing social engineering campaigns.
Organizations utilizing affected Shopware versions should prioritize immediate remediation through the application of patches released in versions 6.7.8.1 and 6.6.10.15, which contain the necessary authorization checks and input validation improvements. The mitigation strategy should include comprehensive testing of the updated API endpoints to ensure that the deepLinkCode functionality operates correctly while maintaining proper access controls. System administrators should also implement network monitoring to detect unusual patterns of API access that might indicate exploitation attempts, particularly around the store-api.order endpoint. Additionally, organizations should conduct thorough access control reviews and validate that all API endpoints properly implement authentication and authorization checks, ensuring that customer data remains isolated and protected according to privacy regulations and industry best practices. The fix addresses the root cause by implementing proper validation of deepLinkCode ownership and ensuring that unauthenticated users cannot access order information beyond their own records, thereby restoring the intended security boundaries within the platform's architecture.