CVE-2021-41691

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.

CVSS v3.1 CNA

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

1.95% chance of exploitation in the next 30 days, 80th percentile

Nuclei

high

Published

2025-06-24

Updated

2025-06-25

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-41691.yaml

Security advisories

• https://resources.s4e.io/blog/opensis-student-information-system-0-day-vulnerability-cve-…
• OS4ED/openSIS-Classic
• https://opensis.com

References

• CVE Record
• NVD entry