The Contact Form Plugin by Fluent Forms for Quiz, Survey, and Drag & Drop WP Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the form's subject parameter in all versions up to, and including, 5.2.6 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.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Howard Ehrenberg Connect Contact Form 7 to Constant Contact allows Reflected XSS.This issue affects Connect Contact Form 7 to Constant Contact: from n/a through 1.4.

Weak Authentication vulnerability in Guido VS Contact Form allows Authentication Abuse.This issue affects VS Contact Form: from n/a through 14.0.

Missing Authorization vulnerability in Themeisle Redirection for Contact Form 7 allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Redirection for Contact Form 7: from n/a through 2.9.2.

Missing Authorization vulnerability in Webcodin WCP Contact Form allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WCP Contact Form: from n/a through 3.1.0.

Missing Authorization vulnerability in Webcodin WCP Contact Form allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects WCP Contact Form: from n/a through 3.1.0.

The Accept Stripe Payments Using Contact Form 7 plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 2.5 via the cf7sa-info.php file that returns phpinfo() data. This makes it possible for unauthenticated attackers to extract configuration information that can be leveraged in another attack.

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 Custom Skins Contact Form 7 plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'cf7cs_action_callback' function in all versions up to, and including, 1.0. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update the content of any post and create new skins.

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.