CVE-2026-13226 Groundhogg <= 4.5.4 - Authenticated (Custom+) SQL Injection via 'after' Parameter

The Groundhogg — CRM, Newsletters, and Marketing Automation plugin for WordPress is vulnerable to generic SQL Injection via the 'after' parameter in all versions up to, and including, 4.5.4 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the...