The Forminator plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.29.1 via class-forminator-addon-hubspot-wp-api.php. This makes it possible for unauthenticated attackers to extract the HubSpot integration developer API key and make unauthorized changes to the plugin's HubSpot integration or expose personally identifiable information from plugin users using the HubSpot integration.

Forminator prior to 1.15.4 contains a cross-site scripting vulnerability. If this vulnerability is exploited, a remote attacker may obtain user information etc. and alter the page contents on the user's web browser.

Forminator prior to 1.29.0 contains an unrestricted upload of file with dangerous type vulnerability. If this vulnerability is exploited, a remote attacker may obtain sensitive information by accessing files on the server, alter the site that uses the plugin, and cause a denial-of-service (DoS) condition.

The Forminator – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘id’ forminator_form shortcode attribute in versions up to, and including, 1.29.2 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.

The Forminator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via an uploaded file (e.g. 3gpp file) in all versions up to, and including, 1.29.0 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 WPMU DEV Forminator allows Reflected XSS.This issue affects Forminator: from n/a through 1.29.0.

The Forminator WordPress plugin before 1.27.0 does not properly sanitize the redirect-url field in the form submission settings, which could allow high-privilege users such as an administrator to inject arbitrary web scripts even when the unfiltered_html capability is disallowed (for example in a multisite setup).

The Forminator plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient blacklisting on the 'forminator_allowed_mime_types' function in versions up to, and including, 1.27.0. This makes it possible for authenticated attackers with administrator-level capabilities or above to upload arbitrary files on the affected site's server, but due to the htaccess configuration, remote code cannot be executed.

The Forminator plugin for WordPress is vulnerable to arbitrary file uploads due to file type validation occurring after a file has been uploaded to the server in the upload_post_image() function in versions up to, and including, 1.24.6. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

The Forminator WordPress plugin before 1.24.4 does not properly escape values that are being reflected inside form fields that use pre-populated query parameters, which could lead to reflected XSS attacks.