CVE-2026-31867

Craft Commerce has a Potential IDOR in Commerce carts

Published: Mar 11, 2026Updated: Mar 17, 2026 Sources: CVE List NVD GHSACWE-639

4.8MEDIUM

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:HAttack Complexity

High

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:LConfidentiality

Low

I:NIntegrity

None

A:LAvailability

Low

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Weaknesses

CWE-639

Affected Products

commercial·NZ

package-ecosystem

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Initial Access

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References

https://github.com/craftcms/commerce/pull/4207

github.com

https://github.com/craftcms/commerce/security/advisories/GHSA-vff3-pqq8-4cpq

github.com

https://nvd.nist.gov/vuln/detail/CVE-2026-31867

nvd.nist.gov

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