Vulnerability · Published Jun 4, 2026 · Assigned by Wordfence
CVE-2026-8653MasterStudy LMS Pro Plus <= 4.8.20 - Authenticated (Instructor+) SQL Injection via 'columns' Parameter
Medium 6.5
In plain English
A medium-severity SQL injection in MasterStudy LMS Pro from StylemixThemes. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).
Official description
The MasterStudy LMS Pro Plus plugin for WordPress is vulnerable to generic SQL Injection via the 'columns' parameter in all versions up to, and including, 4.8.20 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 instructor-level access or above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| StylemixThemes | MasterStudy LMS Pro | 0 – through 4.8.20 |
Weakness: CWE-89 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N