WordPress Title Experiments Free plugin before 9.0.1 contains a SQL injection vulnerability. The plugin does not sanitize and escape the id parameter before using it in a SQL statement via the wpex_titles AJAX action, available to unauthenticated users. An attacker can possibly obtain sensitive information, modify data, and/or execute unauthorized administrative operations in the context of the affected site.
View the template here CVE-2022-0784.yaml
References:
https://github.com/cyllective/CVEs