CVE-2026-9240

Colissimo Officiel : Méthodes de livraison pour WooCommerce <= 2.9.0 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Order Shipment Modification via lpc_order_affect AJAX action

2026-07-08 20:39
Muhan Luo

Strategic Overview

Status
Patched in 2.10.0
Affected Version
<= 2.9.0
CVSS
4.3Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2026-9240
View all Colissimo shipping methods for WooCommerce vulnerabilities

At a glance

CVE-2026-9240 is a medium-severity Missing Authorization vulnerability in the Colissimo shipping methods for WooCommerce WordPress plugin, affecting versions <= 2.9.0. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 2.10.0; sites on affected versions should update now. Disclosed July 2026, reported by Muhan Luo.

Vulnerability Overview

The Colissimo Officiel : Méthodes de livraison pour WooCommerce plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the updateShippingMethod() function (registered to the wp_ajax_lpc_order_affect AJAX action) in versions up to, and including, 2.9.0. This is due to the handler performing no current_user_can() capability check and no nonce verification before reading an attacker-supplied order_id and modifying that order's shipping method, pickup-point meta, and shipping address. This makes it possible for authenticated attackers, with Subscriber-level access and above, to create or modify the shipment information (shipping method, pickup relay data, and shipping address) of arbitrary WooCommerce orders, including orders placed by other users.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-862: Missing Authorization

Colissimo shipping methods for WooCommerce <= 2.9.0 carries this weakness at updateShippingMethod(), and reaching it takes an account at Subscriber level or above. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Colissimo shipping methods for WooCommerce the fix is 2.10.0: builds <= 2.9.0 are affected, anything from 2.10.0 onward is not.

Remediation

Update to version 2.10.0, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Colissimo shipping methods for WooCommerce 2.10.0 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

Related records

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