# Order Tracking <= 3.5.4 - Authenticated (Subscriber+) Insecure Direct Object Reference to Order Viewing and Modification

- **ID:** WPSEC-2026-0559
- **Plugin:** Order Tracking – WordPress Status Tracking Plugin (`order-tracking`), https://wordpress.org/plugins/order-tracking/
- **Affected versions:** from 3.0.0 before 3.6.0
- **Fixed in:** 3.6.0 (Update to 3.6.0 or later.)
- **Severity:** Medium 5.4 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N)
- **Weakness:** CWE-639
- **Usage among sites WPSec scans:** plugin Low, affected versions None seen (as of 2026-10-07)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/order-tracking
- **Fix released:** 2026-10-05
- **Published:** 2026-10-07
- **URL:** https://wpsec.com/vuln/WPSEC-2026-0559/

## Description

The Order Tracking plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions 3.0.0 up to, and including, 3.5.4 due to the add/edit order admin page only verifying that the current user is linked to a sales representative, without verifying that the requested order is assigned to that representative. This makes it possible for authenticated attackers with Subscriber-level access and above, whose account is linked to a sales representative, to view and modify any order and delete status history entries of any order.

## References

- https://wpsec.com/vuln/WPSEC-2026-0559/
- https://plugins.svn.wordpress.org/order-tracking/tags/3.6.0/
- https://wordpress.org/plugins/order-tracking/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-0559/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.