CVE-2021-26200: Library System Project Library System

Critical severity, CVSS 9.8. EPSS: 2.2% chance of exploitation in the next 30 days.

The user area for Library System 1.0 is vulnerable to SQL injection where a user can bypass the authentication and login as the admin user.

Affected products

• Library System Project Library System: version 1.0 only

Published 2021-02-15. Last modified 2026-06-17.