CVE-2022-25611
Authenticated Stored Cross-Site Scripting (XSS) in Simple Event Planner plugin <= 1.5.4 allows attackers with contributor or higher user roles to inject the malicious script by using vulnerable parameter &custom[add_seg][]. Date published : 2022-03-25 https://patchstack.com/database/vulnerability/simple-event-planner/wordpress-simple-event-planner-plugin-1-5-4-authenticated-stored-cross-site-scripting-xss-vulnerability
https://wordpress.org/plugins/simple-event-planner/#developers