CVE-2021-42580: ORETNOM23 Online Learning System

Critical severity, CVSS 9.8. EPSS: 10% chance of exploitation in the next 30 days.

Sourcecodester Online Learning System 2.0 is vunlerable to sql injection authentication bypass in admin login file (/admin/login.php) and authenticated file upload in (Master.php) file , we can craft these two vunlerablities to get unauthenticated remote command execution.

Affected products

• ORETNOM23 Online Learning System: version 2.0 only

Published 2021-11-15. Last modified 2026-06-17.