CVE-2021-41691: OS4ED Opensis

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

A SQL injection vulnerability exists in OS4Ed Open Source Information System Community v8.0 via the "student_id" and "TRANSFER{SCHOOL]" parameters in POST request sent to /TransferredOutModal.php.

Affected products

• OS4ED Opensis: version 8.0 only

Published 2025-06-24. Last modified 2026-06-17.