A SQL injection vulnerability exists in WPEverest Everest Forms plugin for WordPress through 1.4.9. Successful exploitation of this vulnerability would allow a remote attacker to execute arbitrary SQL commands on the affected system via includes/evf-entry-functions.php
https://wpvulndb.com/vulnerabilities/9466
https://wordpress.org/plugins/everest-forms/#developers
https://github.com/wpeverest/everest-forms/commit/755d095fe0d9a756a13800d1513cf98219e4a3f9