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

High 7.2 Published Updated

Unauthenticated attackers can modify plugin settings and inject scripts due to missing authorization checks in the Flexible Checkout Fields for WooCommerce plugin.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-36731?

CVE-2020-36731 is a high-severity missing authorization vulnerability in wpdesk Flexible Checkout Fields for WooCommerce – WooCommerce Checkout Manager, published on 7 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-79

Which versions are affected by CVE-2020-36731?

It affects 1 product.

Products include Wpdesk Flexible Checkout Fields.

How do I fix CVE-2020-36731?

No fix has been published for CVE-2020-36731 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2020-36731 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36731 exists.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-x5rc-5886-54gw.

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