# CVE-2026-67360: J2Store cross-customer order replication in cart checkout

Source: https://junglewise.ai/threats/cve-2026-67360-j2store-cross-customer-order-replication-in-cart-checkout  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-21. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-67360 · Severity: info · CVSS 5.7 · Published 2026-08-21

J2Store is a Joomla e-commerce plugin that manages online shopping carts and orders. A vulnerability allows authenticated users to access and copy another customer's order details, including cart contents and shipping addresses, by manipulating order IDs during checkout. While CSRF protection is in place, the system fails to verify that the user owns the order they're accessing, enabling data theft and account tampering.

Technologies: [J2commerce.Com J2Store](https://junglewise.ai/threats/technologies/j2store). Vendors: [J2commerce.Com](https://junglewise.ai/threats/vendors/j2commerce-com).

## Quick answers

**Is CVE-2026-67360 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-67360 being exploited in the wild.

**How severe is CVE-2026-67360?** Informational severity, with a CVSS score of 5.7, published 21 August 2026.

**Which products and versions are affected?** J2commerce.Com J2Store 1.0.0-3.3.20, 4.0.0-4.0.20, 4.1.0-4.1.5.

**Is there a fix for CVE-2026-67360?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-67360 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-67360?** Check whether you run J2commerce.Com J2Store at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is an improper access control flaw in the J2Store checkout/cart replication function. An authenticated attacker can supply an arbitrary order_id parameter to copy another customer's order data into their own session. Although the application validates CSRF tokens, it does not verify ownership of the target order before allowing the operation. The attack requires authentication and network access to the Joomla installation but no additional user interaction. An attacker can access sensitive customer data including cart contents, billing and shipping addresses, and potentially customer identity information. Patches are available in versions after 4.1.5 and in the newer J2Commerce rebranding.

## Affected products

- j2commerce.com J2Store 1.0.0-3.3.20, 4.0.0-4.0.20, 4.1.0-4.1.5

## Timeline

- 2026-08-21: disclosed

## References

- [https://www.j2commerce.com/](https://www.j2commerce.com/)

## Related threats

- [J2Store PayPal parameter injection in redirect](https://junglewise.ai/threats/cve-2026-82191-j2store-paypal-parameter-injection-in-redirect)
- [J2Store order status manipulation via unauthenticated request](https://junglewise.ai/threats/cve-2026-82189-j2store-order-status-manipulation-via-unauthenticated-request)
- [J2Store SQL injection in storefront product list](https://junglewise.ai/threats/cve-2026-81567-j2store-sql-injection-in-storefront-product-list)
- [J2Commerce J2Store missing CSRF protection in checkout controllers](https://junglewise.ai/threats/cve-2026-78081-j2commerce-j2store-missing-csrf-protection-in-checkout)
- [J2Store missing authorization in Apps controller](https://junglewise.ai/threats/cve-2026-78069-j2store-missing-authorization-in-apps-controller)