What the vulnerability does
01Description
Missing Authorization vulnerability in Taxcloud TaxCloud for WooCommerce simple-sales-tax allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects TaxCloud for WooCommerce: from n/a through <= 8.3.8.
Explanation of Vulnerability in Simple Terms
02Summary
TaxCloud for WooCommerce versions 8.3.8 and earlier lack proper authorization checks, allowing unauthenticated attackers to read and modify sensitive data. The vulnerability requires no user interaction and can be exploited over the network. Site administrators should update to a version newer than 8.3.8 immediately.
What an attacker can do
03Attacker Capabilities
Read and modify sensitive data without authentication.
Potential impact on your site
04Site Impact
Attackers can access and alter tax configuration and customer data without logging in.
Conditions required to exploit
05Prerequisites
Network access only; no authentication or user interaction required.
Key dates
06Disclosure timeline
January 22, 2026
CVE published
April 28, 2026
Record updated