The Nirweb support WordPress plugin before 2.8.2 does not sanitise and escape a parameter before using it in a SQL statement via an AJAX action (available to unauthenticated users), leading to an SQL injection
CVSS 3.1CRITICAL 9.8·Network·No auth·No interaction·EPSS 0.1305·Published 2022-05-23·Fixed in 2.8.2CWE-89