CVE-2026-89289
Fast Courier
Published 6 Oct 2026 · updated 6 Oct 2026 · Received
5.3 Medium · CVSS 3.1, CISA ADP
Description
The Fast Courier WordPress plugin through 5.2.3 does not restrict an unauthenticated REST route that writes order fulfillment data, allowing unauthenticated attackers to overwrite the courier status and customer-facing tracking details of any WooCommerce order by supplying its id.