CVE-2021-40595: Online Leave Management System Project Online Leave Management System

Critical severity, CVSS 9.8. EPSS: 1.4% chance of exploitation in the next 30 days.

SQL injection vulnerability in Sourcecodester Online Leave Management System v1 by oretnom23, allows attackers to execute arbitrary SQL commands via the username parameter to /leave_system/classes/Login.php.

Affected products

• Online Leave Management System Project Online Leave Management System: version 1.0 only

Published 2022-01-21. Last modified 2026-06-17.