The WPForms WordPress plugin before 1.9.2.3 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

The NEX-Forms – Ultimate Form Builder – Contact forms and much more plugin for WordPress is vulnerable to SQL Injection via the 'search_params' parameter in all versions up to, and including, 8.7.13 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. This can be exploited via CSRF due to a lack of nonce validation on the get_table_records AJAX action.

Cross-Site Request Forgery (CSRF) vulnerability in Project Caruso Flaming Forms allows Stored XSS.This issue affects Flaming Forms: from n/a through 1.0.1.

Missing Authorization vulnerability in MailMunch MailChimp Forms by MailMunch allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects MailChimp Forms by MailMunch: from n/a through 3.1.4.

Missing Authorization vulnerability in Cimatti Consulting Contact Forms by Cimatti allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Contact Forms by Cimatti: from n/a through 1.5.7.

Missing Authorization vulnerability in Constant Contact Constant Contact Forms allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Constant Contact Forms: from n/a through 2.0.3.

Missing Authorization vulnerability in Strategy11 Form Builder Team Formidable Forms allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Formidable Forms: from n/a through 5.5.4.

The Ninja Forms – The Contact Form Builder That Grows With You plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the calculations parameter in all versions up to, and including, 3.8.19 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Cognito Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'id' parameter in all versions up to, and including, 2.0.6 due to insufficient input sanitization and output escaping. 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 WPForms plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'wpforms_is_admin_page' function in versions starting from 1.8.4 up to, and including, 1.9.2.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to refund payments and cancel subscriptions.