Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in StylemixThemes MasterStudy LMS masterstudy-lms-learning-management-system allows Stored XSS.This issue affects MasterStudy LMS: from n/a through 3.7.52.

The MasterStudy LMS WordPress plugin from 1.9 before 3.7.50 does not verify that a course a member asks to enrol in is covered by their membership plan, nor that the plan identifier submitted with the request is one they actually hold, allowing any member to enrol themselves into restricted paid courses outside their plan and beyond the number of courses it entitles them to.

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not check whether user registration is enabled on the site before creating an account through one of its front-end registration flows, allowing unauthenticated users to create accounts, and be logged into them, on sites where registration has been deliberately disabled.

Insufficient Verification of Data Authenticity vulnerability in StylemixThemes MasterStudy LMS allows Manipulating User State.

This issue affects MasterStudy LMS: from n/a through 3.7.39.

The MasterStudy LMS WordPress Plugin for Online Courses and Education plugin for WordPress is vulnerable to Time-based Blind SQL Injection via the 'order' and 'orderby' parameters in the /lms/stm-lms/order/items REST API endpoint in versions up to and including 3.7.25. This is due to insufficient input sanitization combined with a design flaw in the custom Query builder class that allows unquoted SQL injection in ORDER BY clauses. When the Query builder detects parentheses in the sortby parameter, it treats the value as a SQL function and directly concatenates it into the ORDER BY clause without any quoting. While escsql() is applied to escape quotes and backslashes, this cannot prevent ORDER BY injection when the values themselves are not wrapped in quotes in the resulting SQL statement. This makes it possible for authenticated attackers, with subscriber-level access and above, to append arbitrary SQL queries via the ORDER BY clause to extract sensitive information from the database including user credentials, session tokens, and other confidential data through time-based blind SQL injection techniques.

Cross-Site Request Forgery (CSRF) vulnerability in Stylemix MasterStudy LMS masterstudy-lms-learning-management-system allows Cross Site Request Forgery.This issue affects MasterStudy LMS: from n/a through <= 3.2.1.

Missing Authorization vulnerability in StylemixThemes MasterStudy LMS allows Exploiting Incorrectly Configured Access Control Security Levels.

This issue affects MasterStudy LMS: from n/a through 3.2.12.