---
id: CVE-2026-103117
title: A security vulnerability has been detected in OS4ED openSIS-Classic up to 9.3
summary: >-
  A security vulnerability has been detected in OS4ED openSIS-Classic up to 9.3.
  Affected is the function db_properties of the file functions/DatabaseInc.php
  of the component Save Data Handler. Such manipulation of the argument values
  lead…
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-74
  - CWE-89
vendor: OS4ED
product: openSIS-Classic
affected:
  - openSIS-Classic 9.0
  - openSIS-Classic 9.1
  - openSIS-Classic 9.2
  - openSIS-Classic 9.3
published: '2026-09-30'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T14:17:27.157'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-103117'
references:
  - url: 'https://github.com/OS4ED/openSIS-Classic/'
    label: cna@vuldb.com
  - url: 'https://github.com/OS4ED/openSIS-Classic/issues/477'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-103117'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/954963'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/411873'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/411873/cti'
    label: cna@vuldb.com
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-30T13:41:28.622735Z'
ingestedAt: '2026-09-30T14:05:17.353Z'
---

## Overview

A security vulnerability has been detected in OS4ED openSIS-Classic up to 9.3. Affected is the function db_properties of the file functions/DatabaseInc.php of the component Save Data Handler. Such manipulation of the argument values leads to sql injection. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.