Deserialization of Untrusted Data vulnerability in WPFunnels WPFunnels allows Object Injection. This issue affects WPFunnels: from n/a through 3.5.18.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WPFunnels WPFunnels allows Stored XSS. This issue affects WPFunnels: from n/a through 3.5.26.

The WPFunnels plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the wpfnldeletelog() function in all versions up to, and including, 3.6.2. This makes it possible for authenticated attackers, with Administrator-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php).

The WPFunnels – The Easiest Funnel Builder For WordPress And WooCommerce To Collect Leads And Increase Sales plugin for WordPress is vulnerable to unauthorized user registration in all versions up to, and including, 3.6.2. This is due to the plugin relying on a user controlled value 'optinallowregistration' to determine if user registration is allowed, instead of the site-specific setting. This makes it possible for unauthenticated attackers to register new user accounts, even when user registration is disabled.

Missing Authorization vulnerability in WPFunnels WPFunnels wpfunnels allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WPFunnels: from n/a through <= 3.6.2.