SQL Injection in Lost & Found Systems: Critical CVE-2023-2668 Explained

Last year, security researchers disclosed a critical SQL injection vulnerability in SourceCodester's Lost and Found Information System version 1.0. On the surface, this might sound like a niche issue affecting only colleges and airports. But vulnerabilities like this routinely become entry points for large-scale breaches—because the underlying pattern is far more common than any single application.

This post breaks down CVE-2023-2668, how it works, and what Indian SMBs must do to avoid similar exposure in their own systems.

What Happened

CVE-2023-2668 is a critical SQL injection vulnerability in the Lost and Found Information System (a popular open-source project on SourceCodester). The vulnerability exists in the admin panel's category management feature, specifically in how the system handles the id parameter in GET requests.

The vulnerable endpoint:

admin/?page=categories/manage_category&id=[PAYLOAD]

An unauthenticated attacker can craft a malicious SQL query and inject it directly into the id parameter. Because the application doesn't properly sanitize or validate user input before passing it to the database, the injected SQL executes with full database privileges.

What this means in practice:

1. Attackers can read sensitive data (student records, lost item descriptions, contact information, payment details)
2. They can modify or delete database records
3. They can potentially escalate privileges and gain admin access
4. In worst cases, they can execute commands on the underlying server

Originally reported by NIST NVD (CVE-2023-2668, VDB-228884)

Why This Matters for Indian Businesses

You might be thinking: "We don't use a Lost and Found system, so this doesn't affect us."

The real risk is the pattern — not the specific application.

The Pattern, Not Just the System

SQL injection vulnerabilities like CVE-2023-2668 are not rare. According to OWASP's top 10 vulnerabilities, SQL injection remains a critical category. This includes:

1. Custom-built web applications
2. Open-source software (especially older versions)
3. Third-party management systems
4. Legacy applications from smaller vendors

DPDP Act Compliance Risk

India's Digital Personal Data Protection (DPDP) Act 2023 requires businesses to implement reasonable security measures to protect personal data, report data breaches to the Data Protection Board within 72 hours, and maintain audit trails demonstrating due diligence.

A SQL injection breach that exposes customer data puts you in direct violation of DPDP requirements. Penalties can reach up to ₹250 crores under the DPDP Act for significant data protection failures.

CERT-In Reporting Mandate

India's CERT-In requires organizations to report significant cybersecurity incidents within 6 hours under CERT-In Directions 2022. A SQL injection breach that compromises data qualifies. Failing to report violates the Information Technology Act Section 70B and can result in penalties and reputational damage.

Real Impact on Indian Institutions

Many Indian colleges, universities, and small institutions use open-source systems like this or similar applications. A single breach can expose student records, payment details from lost item claims, staff information, and institutional data — all of which is valuable to attackers on dark web marketplaces and useful for targeted phishing campaigns.

Technical Breakdown: How CVE-2023-2668 Works

The Vulnerable Code Pattern

<?php
// VULNERABLE CODE - DO NOT USE
$id = $_GET['id']; // User input directly from URL
$query = "SELECT * FROM categories WHERE id = " . $id; // Concatenated into SQL
$result = mysqli_query($connection, $query);
?>

When a user visits:

admin/?page=categories/manage_category&id=1

The query becomes: SELECT * FROM categories WHERE id = 1

But when an attacker visits:

admin/?page=categories/manage_category&id=1 OR 1=1 --

The query becomes: SELECT * FROM categories WHERE id = 1 OR 1=1 --

The 1=1 is always true, so the query returns all categories. The -- comments out the rest.

Attack Escalation

From here, an attacker can:

Extract all data:

admin/?page=categories/manage_category&id=1 UNION SELECT username, password, email FROM admin_users --

Modify data:

admin/?page=categories/manage_category&id=1; UPDATE admin_users SET password='hacked' WHERE id=1; --

Delete records:

admin/?page=categories/manage_category&id=1; DROP TABLE categories; --

Attack Flow

Why This Is Critical

Unlike vulnerabilities that require authentication, complex exploitation, or specific configurations, CVE-2023-2668 requires none of these. An unauthenticated attacker can exploit it with just a modified URL — no special tools, no complex payload. This makes it a high-likelihood threat even for attackers with minimal skills.

How to Protect Your Business

Step 1: Patch or Replace the Vulnerable System

Check if SourceCodester has released a patched version. If not:

1. Implement a Web Application Firewall (WAF) to block SQL injection patterns as a temporary measure
2. Consider migrating to a maintained alternative
3. Take the system offline if it handles sensitive personal data

Step 2: Implement Parameterized Queries

If you're a developer maintaining this or similar code, parameterized queries are the definitive fix:

<?php
// SECURE CODE - USE THIS INSTEAD
$id = $_GET['id'];

// Prepared statements — user input is treated as data, never as SQL
$stmt = $connection->prepare("SELECT * FROM categories WHERE id = ?");
$stmt->bind_param("i", $id); // "i" means integer type
$stmt->execute();
$result = $stmt->get_result();
?>

Or using PDO:

<?php
$id = $_GET['id'];
$stmt = $pdo->prepare("SELECT * FROM categories WHERE id = ?");
$stmt->execute([$id]);
$result = $stmt->fetchAll();
?>

Parameterized queries ensure that user input is treated as data, never as executable SQL code.

Step 3: Deploy a Web Application Firewall

A WAF can block common SQL injection patterns as a defense-in-depth layer:

# ModSecurity (open-source WAF) on Apache
sudo apt-get install libapache2-mod-security2
sudo a2enmod security2
sudo systemctl restart apache2

The OWASP ModSecurity Core Rule Set blocks most SQL injection and XSS patterns out of the box.

Step 4: Harden Database Permissions

Limit blast radius even if SQL injection occurs:

-- Create a restricted database user for the application
CREATE USER 'app_user'@'localhost' IDENTIFIED BY 'strong_password';

-- Grant only necessary permissions
GRANT SELECT, INSERT, UPDATE ON lost_and_found.* TO 'app_user'@'localhost';

-- Deny dangerous operations
REVOKE DROP, DELETE, CREATE ON lost_and_found.* FROM 'app_user'@'localhost';

FLUSH PRIVILEGES;

This way, even if an attacker injects SQL, they cannot drop tables or access other databases.

Step 5: Monitor for Attack Patterns

# Monitor MySQL for suspicious SQL injection patterns
tail -f /var/log/mysql/general.log | grep -iE "OR 1=1|UNION|DROP|DELETE|--"

# Enable slow query log to catch anomalous queries
mysql -u root -p -e "SET GLOBAL slow_query_log = 'ON';"

SQL Injection Prevention Checklist for Indian SMBs

How Bachao.AI Helps Detect This

Bachao.AI by Dhisattva AI Pvt Ltd automates what enterprise security teams do manually: scanning every input parameter across your web applications for injection vulnerabilities.

For a system like the one affected by CVE-2023-2668, a VAPT scan would:

1. Send structured payloads to every form and URL parameter
2. Detect SQL error responses indicating injectable endpoints
3. Flag the id parameter in the admin category management page
4. Provide a remediation report with parameterized query guidance
5. Map findings to CVE database entries and OWASP categories

Action Plan

This week:

1. [ ] Audit all web applications for open-source or custom SQL query construction
2. [ ] Check if any use SourceCodester Lost and Found System version 1.0
3. [ ] Review code for string-concatenated SQL queries

1. [ ] Replace vulnerable SQL patterns with parameterized queries
2. [ ] Deploy WAF if handling sensitive personal data
3. [ ] Create a CERT-In incident response plan

1. [ ] Schedule quarterly VAPT scans
2. [ ] Monitor CERT-In advisories for newly disclosed CVEs
3. [ ] Train developers on secure coding practices (OWASP SAMM framework)

Frequently Asked Questions

What is SQL injection? SQL injection is a web security vulnerability where an attacker inserts malicious SQL code into input fields or URL parameters. When the application passes this input directly to the database without sanitization, the injected SQL executes — allowing data theft, modification, or deletion.

What is CVE-2023-2668? CVE-2023-2668 is a critical SQL injection vulnerability (CVSS 9.8) in SourceCodester Lost and Found Information System v1.0. The id parameter in the admin category management page is directly concatenated into SQL queries without validation, allowing unauthenticated remote attackers to extract or modify all database content.

Does this affect Indian businesses specifically? Yes. Open-source systems from SourceCodester and similar repositories are widely deployed in Indian educational institutions, government offices, and SMBs. Under India's DPDP Act 2023 and CERT-In Directions 2022, a breach via this vulnerability triggers mandatory reporting obligations.

Are parameterized queries enough? Parameterized queries fix the root cause of SQL injection. Combined with a WAF, database least-privilege, and error suppression in production, they provide robust protection against this class of vulnerability.

How do I know if my application has SQL injection vulnerabilities? Run a VAPT scan on your web applications. Automated scanners test every input parameter and URL for injection flaws, including SQL injection patterns mapped to the OWASP Top 10.

What should I do if I suspect my system has been compromised? Isolate the affected system, preserve all logs, and notify CERT-In within 6 hours per CERT-In Directions 2022. Engage a qualified security professional for forensic analysis.

Protect your business with Bachao.AI — India's automated vulnerability assessment and penetration testing platform by Dhisattva AI Pvt Ltd, DPIIT Recognized Startup. Get a comprehensive security scan of your web applications and infrastructure. Visit Bachao.AI to get started.