CVE-2021-41691

CVSS 9.8 CRITICALEPSS 1.7%CWE-89

Vexday Risk Score

43Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 9.8EPSS 1.7%KEV nãoPoC —Nuclei simMetasploit —Patch —

Lifecycle

24 Jun 2025Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

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

Affected products

n/a · n/a

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References

https://github.com/OS4ED/openSIS-Classic/https://opensis.com/https://resources.s4e.io/blog/opensis-student-information-system-0-day-vulnerability-cve-2021-41691/