CVE Catalog

CVE-2026-9858

MediumCVSS 4.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.22%

12th percentile - higher than 12% of all known CVEs

Summary

The Partial Shipment for Woocommerce plugin for WordPress in versions up to and including 3.4 is vulnerable to Missing Authorization via the 'wxp_order_shipment', 'wxp_order_item_shipment', and 'wxp_order_set_shipped' AJAX actions. Lack of capability checks, nonce verification, and order ownership validation allows authenticated attackers with Subscriber-level access and above to read arbitrary order item details and modify shipment status of any order.

Risk Assessment

An authenticated low-privileged attacker can access other customers' order data and modify shipment statuses and shipped quantities. This may lead to data leakage, order fulfillment errors, and financial losses.

Recommendation

Update the Partial Shipment for Woocommerce plugin to a version newer than 3.4 as soon as it becomes available. Until a fix is released, consider disabling the plugin or restricting user roles, and monitor for unusual order status changes.

Related vulnerabilities

Original NVD description (English source)

The Partial Shipment for Woocommerce plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 3.4 via the wxp_order_shipment, wxp_order_item_shipment, and wxp_order_set_shipped AJAX actions. This is due to the AJAX handlers in woocommerce-partial-shipment.php (registered at lines 60–62 and implemented at lines 228, 263, and 291) lacking both capability checks and nonce verification, and not validating the calling user's ownership of the supplied order_id. This makes it possible for authenticated attackers, with Subscriber-level access and above, to read arbitrary order item details (names, quantities, shipped counts) belonging to any customer and to modify the shipment status / shipped quantities of any order, which can also trigger order status transitions via the wxp_order_status action.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS