CVE-2021-41691 json
A SQL injection vulnerability exists in OS4Ed Open Source Information System Community v8.0 via the "student_id" and "TRANSFER{SCHOOL]" par…
published 2025-06-24 16 mo ago modified 2026-06-17 4 mo ago also EUVD-2021-28703
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.1%
- EPSS 2.1% chance of exploitation in 30 days, percentile 81%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 16 mo ago
Exploit prediction
2.07% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template openSIS Student Information System 8.0 SQL Injection nuclei detection template
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Classification
- Weakness
-
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command
References
-
opensis.com
/
product
-
github.com
/OS4ED/openSIS-Classic/
product
-
resources.s4e.io
/blog/opensis-student-information-system-0-day-vulnerability-cve-2021-41691/
third-party-advisory
Sources
- CVE List CVE-2021-41691
- NVD CVE-2021-41691
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