CVE-2021-24323: Woocommerce < 5.2.0 - Authenticated Stored Cross-Site Scripting (XSS)

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-05-17 · updated 2026-06-17
Weakness: CWE-79

Description

When taxes are enabled, the "Additional tax classes" field was not properly sanitised or escaped before being output back in the admin dashboard, allowing high privilege users such as admin to use XSS payloads even when the unfiltered_html is disabled

Affected products

Automattic WooCommerce: before 5.2.0 — fixed in 5.2.0

How to fix

Upgrade to a fixed version: Automattic WooCommerce 5.2.0. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/6d262555-7ae4-4e36-add6-4baa34dc3010
https://wpscan.com/vulnerability/6d262555-7ae4-4e36-add6-4baa34dc3010

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