What’s Vulnerable › Vulnerabilities

CVE-2020-36731: Flexible Checkout Fields for WooCommerce <= 2.3.1 - Unauthenticated Arbitrary Plugin Settings Update

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-06-07 · updated 2026-06-17
• Weakness: CWE-79

Description

The Flexible Checkout Fields for WooCommerce plugin for WordPress is vulnerable to Unauthenticated Arbitrary Plugin Settings update, in addition to Stored Cross-Site Scripting in versions up to, and including, 2.3.1. This is due to missing authorization checks on the updateSettingsAction() function which is called via an admin_init hook, along with missing sanitization and escaping on the settings that are stored.

Affected products

• WP Desk Flexible Checkout Fields for WooCommerce: through 2.3.1

References

• https://blog.nintechnet.com/zero-day-vulnerability-fixed-in-wordpress-flexible-checkout-fields-for-woocommerce-plugin/
• https://www.wordfence.com/blog/2020/02/site-takeover-campaign-exploits-multiple-zero-day-vulnerabilities/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/fd12a952-2e99-41f7-b74c-55c2b7d8deed?source=cve
• https://blog.nintechnet.com/zero-day-vulnerability-fixed-in-wordpress-flexible-checkout-fields-for-woocommerce-plugin/
• https://www.wordfence.com/blog/2020/02/site-takeover-campaign-exploits-multiple-zero-day-vulnerabilities/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/fd12a952-2e99-41f7-b74c-55c2b7d8deed?source=cve

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