The One Click Upsell Funnel for WooCommerce – Funnel Builder for WordPress, Create WooCommerce Upsell, Post-Purchase Upsell & Cross Sell Offers that Boost Sales & Increase Profits with Sales Funnel Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's wps_wocuf_pro_yes shortcode in all versions up to, and including, 3.4.9 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Easiest Funnel Builder For WordPress & WooCommerce by WPFunnels plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'post_id' parameter in all versions up to, and including, 3.5.5 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. This was partially patched in 3.5.4 and fully patched in 3.5.5.

The Freemius SDK, as used by hundreds of WordPress plugin and theme developers, was vulnerable to Cross-Site Request Forgery and Information disclosure due to missing capability checks and nonce protection on the _get_debug_log, _get_db_option, and the _set_db_option functions in versions up to, and including 2.4.2. Any WordPress plugin or theme running a version of Freemius less than 2.4.3 is vulnerable.

The FunnelKit Funnel Builder Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'allow_iframe_tag_in_post' function which uses the 'wp_kses_allowed_html' filter to globally allow script and iframe tags in posts in all versions up to, and including, 3.4.5. This makes it possible for authenticated attackers, with contributor access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Funnel Builder for WordPress by FunnelKit – Customize WooCommerce Checkout Pages, Create Sales Funnels, Order Bumps & One Click Upsells plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on multiple functions in all versions up to, and including, 3.4.6. This makes it possible for authenticated attackers, with Contributor-level access and above, to update multiple settings, including templates, designs, checkouts, and other plugin settings.

The Funnel Builder for WordPress by FunnelKit – Customize WooCommerce Checkout Pages, Create Sales Funnels, Order Bumps & One Click Upsells plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘mimes’ parameter in all versions up to, and including, 3.3.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The WooCommerce Checkout & Funnel Builder by CartFlows – Create High Converting Stores For WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘custom_upload_mimes’ function in versions up to, and including, 2.0.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in CartFlows Inc. Funnel Builder by CartFlows allows Stored XSS.This issue affects Funnel Builder by CartFlows: from n/a through 2.0.1.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in FunnelKit Funnel Builder for WordPress by FunnelKit – Customize WooCommerce Checkout Pages, Create Sales Funnels & Maximize Profits.This issue affects Funnel Builder for WordPress by FunnelKit – Customize WooCommerce Checkout Pages, Create Sales Funnels & Maximize Profits: from n/a through 2.14.3.

The Drag & Drop Sales Funnel Builder for WordPress plugin before 2.6.9 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.