CVE-2026-18752 Persistent Login <= 3.1.0 - Authenticated (Subscriber+) SQL Injection via 'wppl_device_id' Cookie

The Persistent Login plugin for WordPress is vulnerable to generic SQL Injection via 'wppldeviceid' Cookie in all versions up to, and including, 3.1.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible f...