Description
WordPress Plugin YITH WooCommerce Waiting List is prone to a security bypass vulnerability. Exploiting this issue may allow attackers to perform otherwise restricted actions and subsequently modify plugin options. WordPress Plugin YITH WooCommerce Waiting List version 1.3.9 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 1.3.11 or latest
References
https://blog.nintechnet.com/authenticated-settings-change-vulnerability-in-yit-plugin-framework/
https://plugins.svn.wordpress.org/yith-woocommerce-waiting-list/trunk/README.txt