SQL Injection Vulnerability in OS4ED openSIS-Classic Student List Search Endpoint
CVE-2026-103116

5.3MEDIUM

Key Information:

Vendor

Os4ed

Status
Opensis-classic
Vendor
CVE Published:
30 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-103116?

A vulnerability has been detected in OS4ED's openSIS-Classic version up to 9.3, specifically in the Student List Search Endpoint's DBQuery function located in functions/GetStuListFnc.php. This issue arises from improper handling of the LO_sort argument, allowing for SQL injection attacks that can be executed remotely. The exploit's details have been made publicly available, potentially putting systems at risk. Despite early notification to the project about this weakness through an issue report, there has been no response from the vendor, highlighting an urgent need for organizations to assess and mitigate their exposure.

Affected Version(s)

openSIS-Classic 9.0

openSIS-Classic 9.1

openSIS-Classic 9.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-103116 - Proof of Concept

References

https://vuldb.com/vuln/411872
vdb-entrytechnical-description
https://vuldb.com/vuln/411872/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-103116
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

360alphalab (VulDB User)
VulDB CNA Team
.