Description
WordPress Plugin Advanced AJAX Product Filters is prone to a security bypass vulnerability. Exploiting this issue may allow attackers to perform otherwise restricted actions and subsequently update all the plugin options. WordPress Plugin Advanced AJAX Product Filters version 1.3.6.1 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 1.3.7 or latest
References
https://labs.sucuri.net/unauthenticated-settings-update-in-woocommerce-ajax-filters/
https://plugins.svn.wordpress.org/woocommerce-ajax-filters/trunk/readme.txt