Read private customer data reclaiming carts in Klaviyo Magento
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | klaviyo/magento2-extension | >= 1.0.0, < 3.0.0 | 3.0.0 |
References
- Weakness (CWE)
CWE-200- Platform
- Composer
- Package
klaviyo/magento2-extension- Disclosed
- 15.05.2024
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-hvgw-gg3p-295j - CC BY 4.0
Vulnerability history: klaviyo/magento2-extension
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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