WooCommerce Payments, a popular eCommerce payment plugin for WordPress, has been found to be vulnerable to a critical vulnerability. The vulnerability could allow an attacker to gain unauthorized access to a store's backend and steal sensitive data.
The vulnerability was discovered by a security researcher and reported to WooCommerce through their HackerOne bug bounty program. WooCommerce quickly patched the vulnerability and released a new version of the plugin (5.6.2).
WooCommerce recommends that all users of the plugin update to the latest version immediately. They also recommend changing all administrator passwords and rotating their payment gateway and WooCommerce API keys.
This vulnerability is a serious one and should be taken seriously by all WooCommerce users. By following WooCommerce's recommendations, you can help to protect your store from this vulnerability.
In addition to the above, I would also recommend the following:
We recommend reading the original announcement here: https://developer.woocommerce.com/2023/03/23/critical-vulnerability-detected-in-woocommerce-payments-what-you-need-to-know/
If you are a current customer and need help to understand if you site is impacted, please do raise a support ticket