CVE-2021-41691

CRITICAL EPSS 74.6%
Published Jun 24, 20251y ago · Modified Jun 17, 20261w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Jun 24, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
74.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-89 SQL Injection Injection

Affected Products 1

VendorProductVersionRange
os4edopensis8.0any

References 3

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.