CVE-2021-37803: Online Covid Vaccination Scheduler System Project Online Covid Vaccination Scheduler System

High severity, CVSS 8.1. EPSS: 1.6% chance of exploitation in the next 30 days.

An SQL Injection vulnerability exists in Sourcecodester Online Covid Vaccination Scheduler System 1.0 via the username in lognin.php .

Affected products

• Online Covid Vaccination Scheduler System Project Online Covid Vaccination Scheduler System: version 1.0 only

Published 2021-10-27. Last modified 2026-06-17.