The Groundhogg plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'gh_form' shortcode in versions up to, and including, 2.7.9.8 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Please note this only works with legacy contact forms.
The Groundhogg plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.7.9.8. This is due to missing nonce validation in the 'ajax_edit_contact' function. This makes it possible for authenticated attackers to receive the auto login link via shortcode and then modify the assigned user to the auto login link to elevate verified user privileges via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
The Groundhogg plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'check_license' functions in versions up to, and including, 2.7.9.8. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to change the license key and support license key, but it can only be changed to a valid license key.
The WordPress CRM, Email & Marketing Automation for WordPress | Award Winner — Groundhogg WordPress plugin before 2.7.9.4 does not properly sanitise and escape a parameter before using it in a SQL statement, leading to a SQL injection exploitable by high privilege users such as admins