Craft Commerce is an ecommerce platform for Craft CMS. Prior to 4.11.0 and 5.6.0, An Insecure Direct Object Reference (IDOR) vulnerability exists in Craft Commerce’s cart functionality that allows users to hijack any shopping cart by knowing or guessing its 32-character number. The CartController accepts a user-supplied number parameter to load and modify shopping carts. No ownership validation is performed - the code only checks if the order exists and is incomplete, not whether the requester has authorization to access it. This vulnerability enables the takeover of shopping sessions and potential exposure of PII. This vulnerability is fixed in 4.11.0 and 5.6.0.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-vff3-pqq8-4cpq Craft Commerce: Potential IDOR in Commerce carts
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 12 Mar 2026 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Craftcms
Craftcms commerce
Vendors & Products Craftcms
Craftcms commerce

Wed, 11 Mar 2026 18:00:00 +0000

Type Values Removed Values Added
Description Craft Commerce is an ecommerce platform for Craft CMS. Prior to 4.11.0 and 5.6.0, An Insecure Direct Object Reference (IDOR) vulnerability exists in Craft Commerce’s cart functionality that allows users to hijack any shopping cart by knowing or guessing its 32-character number. The CartController accepts a user-supplied number parameter to load and modify shopping carts. No ownership validation is performed - the code only checks if the order exists and is incomplete, not whether the requester has authorization to access it. This vulnerability enables the takeover of shopping sessions and potential exposure of PII. This vulnerability is fixed in 4.11.0 and 5.6.0.
Title Craft Commerce has a Potential IDOR in Commerce carts
Weaknesses CWE-639
References
Metrics cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-11T17:52:18.298Z

Reserved: 2026-03-09T19:02:25.013Z

Link: CVE-2026-31867

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-11T18:16:25.663

Modified: 2026-03-11T18:16:25.663

Link: CVE-2026-31867

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-12T09:57:31Z

Weaknesses