GraphQL May Expose Promo Codes in Magento 2.4.8

A Security Concern for E-commerce (Magento) Sites

With the release of Magento 2.4.8, a new resolver has been introduced that lists all Cart and Catalog Rules by name via GraphQL. While this feature enhances accessibility, it poses a significant security risk if promo codes are included in the rule names on the backend.

The Issue

The practice of embedding promotion codes directly into rule names in the backend, such as “SUMMER20” or “BLACKFRIDAY50,” can inadvertently make these codes publicly queryable. This means that anyone with access to your GraphQL endpoint could potentially retrieve these promo codes, leading to unintended sales or discounts.

Why It Matters

Adding promo codes to rule names might seem like a convenient practice, but it can backfire. Unauthorized use of these codes could result in revenue loss, devalue your promotions, or even attract malicious actors looking to exploit your system.

How to Mitigate the Risk

To prevent this exposure, it’s recommended to avoid including promo codes in rule names. Instead, use descriptive names that do not reveal sensitive information. Additionally, you can disable this behavior via the CLI, as outlined in Damien Retzinger’s LinkedIn post, which provides detailed steps to secure your setup.

Stay vigilant and review your Magento configuration to ensure your promo codes remain confidential!