CVE-2026-31887
Published: 11 March 2026
Summary
CVE-2026-31887 is a high-severity Incorrect Authorization (CWE-863) vulnerability in Shopware Shopware. Its CVSS base score is 8.9 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 14.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 AC-3 (Access Enforcement) and SI-10 (Information Input Validation).
Deeper analysis
CVE-2026-31887 is a vulnerability in Shopware, an open commerce platform, affecting versions prior to 6.7.8.1 and 6.6.10.15. It arises from an insufficient check on filter types for unauthenticated customers within the deepLinkCode support on the store-api.order endpoint, enabling access to orders belonging to other customers. The issue, published on 2026-03-11, carries a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) and maps to CWE-863 (Incorrect Authorization).
Unauthenticated attackers can exploit this vulnerability over the network with low attack complexity and no user interaction. By manipulating filter types on the affected endpoint, they can retrieve sensitive order data from other customers, achieving high confidentiality impact while leaving integrity and availability unaffected.
The official Shopware security advisory (https://github.com/shopware/shopware/security/advisories/GHSA-7vvp-j573-5584) confirms the vulnerability and states it is fixed in versions 6.7.8.1 and 6.6.10.15. Security practitioners should prioritize upgrading affected Shopware instances to these patched releases to prevent unauthorized order data exposure.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-11296
Vulnerability details
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…
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vulnerability is fixed in 6.7.8.1 and 6.6.10.15.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The CVE describes an authorization bypass in a public-facing store-api.order endpoint of Shopware, directly enabling remote unauthenticated access to sensitive customer order data; this maps to exploitation of an Internet-facing application for data access.
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Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly mitigates the insufficient authorization checks on the store-api.order endpoint by enforcing approved access controls to block unauthenticated access to other customers' orders.
Addresses the manipulation of filter types by requiring validation of all information inputs to the vulnerable endpoint, preventing authorization bypass.
Ensures least privilege for unauthenticated users, restricting access to only their own orders and mitigating exposure of other customers' data.