SEO Booster vulnerabilities

The SEO Booster plugin for WordPress (versions up to and including 7.4.7) is vulnerable to Missing Authorization due to a missing capability check on the handle_oauth_callback() function hooked to admin_init, which processes $_GET['access_token'] and $_GET['google_email'] without verifying the caller's role. This allows authenticated attackers with Subscriber-level access and above to overwrite the seobooster_access_token, seobooster_google_email, and seobooster_gsc_sites options and delete the seobooster_needs_reauth flag by visiting a crafted /wp-admin/ URL, disrupting the Google Search Console integration and injecting attacker-chosen data into site options.

The SEO Booster plugin for WordPress is vulnerable to generic SQL Injection via the 'sort_field' parameter in all versions up to and including 7.3.1. This is due to insufficient escaping on the user-supplied parameter and lack of sufficient preparation on the existing SQL query.

The SEO Booster plugin for WordPress is vulnerable to time-based SQL injection via the 'orderby' parameter in all versions up to and including 7.3.1. This is due to insufficient escaping and lack of proper SQL query preparation, allowing authenticated attackers with administrator-level access to append additional SQL queries.