CVE-2021-36622: Online Covid Vaccination Scheduler System Project Online Covid Vaccination Scheduler System

Critical severity, CVSS 9.8. EPSS: 1.9% chance of exploitation in the next 30 days.

Sourcecodester Online Covid Vaccination Scheduler System 1.0 is affected vulnerable to Arbitrary File Upload. The admin panel has an upload function of profile photo accessible at http://localhost/scheduler/admin/?page=user. An attacker could upload a malicious file such as shell.php with the Content-Type: image/png. Then, the attacker have to visit the uploaded profile photo to access the shell.

Affected products

Published 2021-08-03. Last modified 2026-06-17.