The Poll, Survey, Questionnaire and Voting system WordPress plugin before 1.5.3 did not sanitise, escape or validate the date_answers[] POST parameter before using it in a SQL statement when sending a Poll result, allowing unauthenticated users to perform SQL Injection attacks
View the template here CVE-2021-24442.yaml
References:
https://wpscan.com/vulnerability/7376666e-9b2a-4239-b11f-8544435b444a/