SQL Injection Vulnerability in OS4ED openSIS-Classic by OS4ED
CVE-2026-103113

5.1MEDIUM

Key Information:

Vendor

Os4ed

Status
Opensis-classic
Vendor
CVE Published:
30 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-103113?

A vulnerability exists in OS4ED openSIS-Classic versions up to 9.3, specifically within the save action function of the modules/students/Student.php file in the General Information Tab. An attacker may exploit this vulnerability to execute SQL injection attacks by manipulating the 'students' argument, allowing unauthorized access to the database. This type of attack can be initiated remotely, posing a significant threat to the security of sensitive data. Despite early notification to the project regarding this issue, no response has been issued.

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-2026-103113 - Proof of Concept

References

https://vuldb.com/vuln/411869
vdb-entrytechnical-description
https://vuldb.com/vuln/411869/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-103113
third-party-advisory

CVSS V4

Score:
5.1
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
.