CVE-2026-31867 is an Insecure Direct Object Reference (IDOR) vulnerability affecting Craft Commerce versions prior to 4.11.0 and 5.6.0, enabling attackers to hijack shopping carts by guessing or knowing a cart's 32-character identifier due to insufficient ownership validation. This medium-severity flaw (CVSS 4.8) has a network attack vector but high attack complexity, potentially leading to the exposure of personal identifiable information (PII) and shopping session takeovers. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed on CISA's Known Exploited Vulnerabilities catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.0.0, < 4.11.0CPE matchmatch criteria | cpe:2.3:a:craftcms:craft_commerce:*:*:*:*:*:craft_cms:*:* | ||
>= 5.0.0, < 5.6.0CPE matchmatch criteria | cpe:2.3:a:craftcms:craft_commerce:*:*:*:*:*:craft_cms:*:* |
CVSS version used by this source: 4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.