A Leader in the 2026 Gartner® Magic Quadrant™ for Endpoint Protection. Six years running.Six years. Gartner® Magic Quadrant™ Leader.Find Out Why
Experiencing a Breach?Blog
Get StartedContact Us
SentinelOne
  • Platform
    Platform Overview
    • Singularity Platform
      Welcome to Integrated Enterprise Security
    • AI for Security
      Leading the Way in AI-Powered Security Solutions
    • Securing AI
      Accelerate AI Adoption with Secure AI Tools, Apps, and Agents.
    • How It Works
      The Singularity XDR Difference
    • Singularity Marketplace
      One-Click Integrations to Unlock the Power of XDR
    • Pricing & Packaging
      Comparisons and Guidance at a Glance
    Data & AI
    • Purple AI
      Accelerate SecOps with Generative AI
    • Singularity Hyperautomation
      Easily Automate Security Processes
    • AI-SIEM
      The AI SIEM for the Autonomous SOC
    • AI Data Pipelines
      Security Data Pipeline for AI SIEM and Data Optimization
    • Singularity Data Lake
      AI-Powered, Unified Data Lake
    • Singularity Data Lake for Log Analytics
      Seamlessly Ingest Data from On-Prem, Cloud or Hybrid Environments
    Endpoint Security
    • Singularity Endpoint
      Autonomous Prevention, Detection, and Response
    • Singularity XDR
      Native & Open Protection, Detection, and Response
    • Singularity RemoteOps Forensics
      Orchestrate Forensics at Scale
    • Singularity Threat Intelligence
      Comprehensive Adversary Intelligence
    • Singularity Vulnerability Management
      Application & OS Vulnerability Management
    • Singularity Identity
      Identity Threat Detection and Response
    Cloud Security
    • Singularity Cloud Security
      Block Attacks with an AI-Powered CNAPP
    • Singularity Cloud Native Security
      Secure Cloud and Development Resources
    • Singularity Cloud Workload Security
      Real-Time Cloud Workload Protection Platform
    • Singularity Cloud Data Security
      AI-Powered Threat Detection for Cloud Storage
    • Singularity Cloud Security Posture Management
      Detect and Remediate Cloud Misconfigurations
    Securing AI
    • Prompt Security
      Secure AI Tools Across Your Enterprise
  • Why SentinelOne?
    Why SentinelOne?
    • Why SentinelOne?
      Cybersecurity Built for What’s Next
    • Our Customers
      Trusted by the World’s Leading Enterprises
    • Industry Recognition
      Tested and Proven by the Experts
    • About Us
      The Industry Leader in Autonomous Cybersecurity
    Compare SentinelOne
    • Arctic Wolf
    • Broadcom
    • CrowdStrike
    • Cybereason
    • Microsoft
    • Palo Alto Networks
    • Sophos
    • Splunk
    • Trellix
    • Trend Micro
    • Wiz
    Verticals
    • Energy
    • Federal Government
    • Finance
    • Healthcare
    • Higher Education
    • K-12 Education
    • Manufacturing
    • Retail
    • State and Local Government
  • Services
    Managed Services
    • Managed Services Overview
      Wayfinder Threat Detection & Response
    • Threat Hunting
      World-Class Expertise and Threat Intelligence
    • Managed Detection & Response
      24/7/365 Expert MDR Across Your Entire Environment
    • Incident Readiness & Response
      DFIR, Breach Readiness, & Compromise Assessments
    Support, Deployment, & Health
    • Technical Account Management
      Customer Success with Personalized Service
    • SentinelOne GO
      Guided Onboarding & Deployment Advisory
    • SentinelOne University
      Live and On-Demand Training
    • Services Overview
      Comprehensive Solutions for Seamless Security Operations
    • SentinelOne Community
      Community Login
  • Partners
    Our Network
    • MSSP Partners
      Succeed Faster with SentinelOne
    • Singularity Marketplace
      Extend the Power of S1 Technology
    • Cyber Risk Partners
      Enlist Pro Response and Advisory Teams
    • Technology Alliances
      Integrated, Enterprise-Scale Solutions
    • SentinelOne for AWS
      Hosted in AWS Regions Around the World
    • Channel Partners
      Deliver the Right Solutions, Together
    • SentinelOne for Google Cloud
      Unified, Autonomous Security Giving Defenders the Advantage at Global Scale
    • Partner Locator
      Your Go-to Source for Our Top Partners in Your Region
    Partner Portal→
  • Resources
    Resource Center
    • Case Studies
    • Data Sheets
    • eBooks
    • Reports
    • Videos
    • Webinars
    • Whitepapers
    • Events
    View All Resources→
    Blog
    • Feature Spotlight
    • For CISO/CIO
    • From the Front Lines
    • Identity
    • Cloud
    • macOS
    • SentinelOne Blog
    Blog→
    Tech Resources
    • SentinelLABS
    • Ransomware Anthology
    • Cybersecurity 101
  • About
    About SentinelOne
    • About SentinelOne
      The Industry Leader in Cybersecurity
    • Investor Relations
      Financial Information & Events
    • SentinelLABS
      Threat Research for the Modern Threat Hunter
    • Careers
      The Latest Job Opportunities
    • Press & News
      Company Announcements
    • Cybersecurity Blog
      The Latest Cybersecurity Threats, News, & More
    • FAQ
      Get Answers to Our Most Frequently Asked Questions
    • DataSet
      The Live Data Platform
    • S Foundation
      Securing a Safer Future for All
    • S Ventures
      Investing in the Next Generation of Security, Data and AI
  • Pricing
Get StartedContact Us
CVE Vulnerability Database
Vulnerability Database/CVE-2026-4568

CVE-2026-4568: Sales and Inventory System SQLi Flaw

CVE-2026-4568 is a SQL injection vulnerability in SourceCodester Sales and Inventory System 1.0 affecting the update_supplier.php file. This article covers technical details, affected versions, impact, and mitigation.

Published: March 27, 2026

CVE-2026-4568 Overview

A SQL injection vulnerability has been identified in SourceCodester Sales and Inventory System version 1.0. The vulnerability exists in the /update_supplier.php file within the HTTP GET Request Handler component. By manipulating the sid argument, an attacker can inject malicious SQL queries that may compromise database integrity, confidentiality, and availability. The attack can be launched remotely by authenticated users, and a public exploit has been disclosed.

Critical Impact

Remote attackers with low-level privileges can exploit this SQL injection vulnerability to extract sensitive data, modify database contents, or potentially escalate their access within the affected Sales and Inventory System.

Affected Products

  • SourceCodester Sales and Inventory System 1.0
  • HTTP GET Request Handler component (/update_supplier.php)
  • Systems using the vulnerable sid parameter handling

Discovery Timeline

  • 2026-03-23 - CVE-2026-4568 published to NVD
  • 2026-03-23 - Last updated in NVD database

Technical Details for CVE-2026-4568

Vulnerability Analysis

This vulnerability falls under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), commonly referred to as injection vulnerabilities. The Sales and Inventory System fails to properly sanitize user-supplied input in the sid parameter before incorporating it into SQL queries.

The vulnerable endpoint /update_supplier.php accepts HTTP GET requests with a supplier ID parameter. When this parameter is processed, the application directly concatenates the user input into SQL statements without proper parameterization or escaping. This allows attackers to break out of the intended query structure and execute arbitrary SQL commands against the backend database.

The network-accessible nature of this vulnerability means that any authenticated user with access to the supplier update functionality can potentially exploit this flaw without requiring physical access to the system.

Root Cause

The root cause of this vulnerability is insufficient input validation and the lack of parameterized queries in the /update_supplier.php file. The application directly incorporates user-supplied data from the sid parameter into SQL statements without sanitization, allowing special SQL characters and syntax to be interpreted as part of the query structure rather than as literal data values.

Attack Vector

The attack vector is network-based, requiring only low privileges and no user interaction. An attacker can craft malicious HTTP GET requests to the /update_supplier.php endpoint with SQL injection payloads embedded in the sid parameter. These payloads can be designed to:

  • Extract sensitive information from the database through UNION-based or error-based injection
  • Modify or delete existing records
  • Bypass authentication mechanisms
  • Potentially execute operating system commands if the database is configured with elevated privileges

The exploit details have been publicly documented and are available through the GitHub SQL Injection PoC repository.

Detection Methods for CVE-2026-4568

Indicators of Compromise

  • Unusual SQL error messages in application logs referencing /update_supplier.php
  • HTTP GET requests to /update_supplier.php containing SQL metacharacters in the sid parameter (e.g., single quotes, double dashes, UNION statements)
  • Database query logs showing unexpected or malformed queries originating from the supplier update functionality
  • Unauthorized data access patterns or bulk data extraction from supplier-related tables

Detection Strategies

  • Deploy Web Application Firewall (WAF) rules to inspect and block requests containing SQL injection patterns targeting the sid parameter
  • Implement database activity monitoring to detect anomalous query patterns or privilege escalation attempts
  • Configure application logging to capture all requests to /update_supplier.php with full parameter details for forensic analysis
  • Use intrusion detection systems with signatures for common SQL injection attack patterns

Monitoring Recommendations

  • Monitor access logs for repeated requests to /update_supplier.php with varying sid parameter values, which may indicate automated exploitation attempts
  • Set up alerts for database errors or exceptions that may indicate injection attempts
  • Review authentication logs for any successful logins following suspected SQL injection activity
  • Establish baseline query patterns for the supplier update functionality to detect deviations

How to Mitigate CVE-2026-4568

Immediate Actions Required

  • Restrict network access to the Sales and Inventory System to trusted IP addresses only until a patch is applied
  • Implement input validation on the sid parameter to accept only numeric values
  • Consider temporarily disabling the supplier update functionality if immediate patching is not possible
  • Review database logs for any signs of prior exploitation

Patch Information

No official vendor patch information was available at the time of publication. Organizations using SourceCodester Sales and Inventory System 1.0 should monitor the SourceCodester website for security updates. Additional vulnerability details can be found in the VulDB Entry #352405.

Workarounds

  • Implement parameterized queries (prepared statements) in the /update_supplier.php file to prevent SQL injection
  • Add server-side input validation to ensure the sid parameter contains only expected numeric values
  • Deploy a Web Application Firewall with SQL injection protection rules as an interim defense layer
  • Implement the principle of least privilege for database accounts used by the application
bash
# Example: Apache mod_rewrite rule to block suspicious sid parameter values
# Add to .htaccess or Apache configuration
RewriteEngine On
RewriteCond %{QUERY_STRING} sid=.*['\";()=] [NC]
RewriteRule ^update_supplier\.php$ - [F,L]

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

  • Vulnerability Details
  • TypeSQLI

  • Vendor/TechSourcecodester Sales And Inventory System

  • SeverityMEDIUM

  • CVSS Score5.3

  • EPSS Probability0.03%

  • Known ExploitedNo
  • CVSS Vector
  • CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  • Impact Assessment
  • ConfidentialityLow
  • IntegrityNone
  • AvailabilityLow
  • CWE References
  • CWE-74
  • Technical References
  • GitHub SQL Injection PoC

  • VulDB CTI ID #352405

  • VulDB Entry #352405

  • VulDB Submission #775161

  • SourceCodester Security Resources
  • Related CVEs
  • CVE-2026-4826: Sales & Inventory System SQLi Vulnerability

  • CVE-2026-4825: Sales and Inventory System SQLi Flaw

  • CVE-2026-4781: SourceCodester Sales System SQLi Flaw

  • CVE-2026-4777: Sales Inventory System SQLi Vulnerability
Default Legacy - Prefooter | Experience the World’s Most Advanced Cybersecurity Platform

Experience the Most Advanced Cybersecurity Platform

See how the world’s most intelligent, autonomous cybersecurity platform can protect your organization today and into the future.

Try SentinelOne
  • Get Started
  • Get a Demo
  • Product Tour
  • Why SentinelOne
  • Pricing & Packaging
  • FAQ
  • Contact
  • Contact Us
  • Customer Support
  • SentinelOne Status
  • Language
  • Platform
  • Singularity Platform
  • Singularity Endpoint
  • Singularity Cloud
  • Singularity AI-SIEM
  • Singularity Identity
  • Singularity Marketplace
  • Purple AI
  • Services
  • Wayfinder TDR
  • SentinelOne GO
  • Technical Account Management
  • Support Services
  • Verticals
  • Energy
  • Federal Government
  • Finance
  • Healthcare
  • Higher Education
  • K-12 Education
  • Manufacturing
  • Retail
  • State and Local Government
  • Cybersecurity for SMB
  • Resources
  • Blog
  • Labs
  • Case Studies
  • Videos
  • Product Tours
  • Events
  • Cybersecurity 101
  • eBooks
  • Webinars
  • Whitepapers
  • Press
  • News
  • Ransomware Anthology
  • Company
  • About Us
  • Our Customers
  • Careers
  • Partners
  • Legal & Compliance
  • Security & Compliance
  • Investor Relations
  • S Foundation
  • S Ventures

©2026 SentinelOne, All Rights Reserved.

Privacy Notice Terms of Use

English