Medium severity · published Jun 7, 2023
CVE-2020-36731
Flexible Checkout Fields for WooCommerce <= 2.3.1 - Unauthenticated Arbitrary Plugin Settings Update
6.1
CVSS
1.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 71% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FC
Flexible Checkout Fields for WooCommerce – WooCommerce Checkout Manager · wpdesk
before 2.3.2 · source: vendor
FC
Flexible Checkout Fields · Wpdesk
through 2.3.1 · source: NVD
Affected product
FC
Flexible Checkout Fields for WooCommerce – WooCommerce Checkout Manager
wpdesk
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-36731
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-36731
Exploit
https://blog.nintechnet.com/zero-day-vulnerability-fixed-in-wordpress-flexible-checkout-fields-for-woocommerce-plugin/
Exploit
https://www.wordfence.com/blog/2020/02/site-takeover-campaign-exploits-multiple-zero-day-vulnerabilities/
Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/fd12a952-2e99-41f7-b74c-55c2b7d8deed?source=cve