Read private customer data reclaiming carts in Klaviyo Magento
Date: 2024-05
Affected: composer/klaviyo/magento2-extension
Attack vector: info-disclosure
Category: vulnerability-disclosure
Severity: Medium
CWE: CWE-200

A researcher identified an endpoint in a thirth party module Klaviyo Magento 2 which allows to read private customer data from stores. It works by reclaiming any guest-cart as your own and reading the private data for the orders in the Magento API.


Mitigations:

Architectural layers (MAESTRO):