The Gravity Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘style_settings’ parameter in versions 2.9.0.1 up to, and including, 2.9.1.3 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 attack is only successful in the Chrome web browser, and requires directly browsing the media file via the attachment post.

The Gravity Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘alt’ parameter in all versions up to, and including, 2.9.1.3 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 Woo Billingo Plus WordPress plugin before 4.4.5.4, Integration for Billingo & Gravity Forms WordPress plugin before 1.0.4, Integration for Szamlazz.hu & Gravity Forms WordPress plugin before 1.2.7 are lacking CSRF checks in various AJAX actions, which could allow attackers to make logged in Shop Managers and above perform unwanted actions, such as deactivate the plugin's license

Unrestricted file upload vulnerability in the Gravity Upload Ajax plugin 1.1 and earlier for WordPress allows remote attackers to execute arbitrary code by uploading a file with an executable extension, then accessing it via a direct request to the file under wp-content/uploads/gravity_forms.

Unrestricted file upload vulnerability in includes/upload.php in the Aviary Image Editor Add-on For Gravity Forms plugin 3.0 beta for WordPress allows remote attackers to execute arbitrary code by uploading a file with an executable extension, then accessing it via a direct request to the file in wp-content/uploads/gform_aviary.

The Infusionsoft Gravity Forms plugin 1.5.3 through 1.5.10 for WordPress does not properly restrict access, which allows remote attackers to upload arbitrary files and execute arbitrary PHP code via a request to utilities/code_generator.php.