CVE-2026-3746
📋 TL;DR
CVE-2026-3746 is an SQL injection vulnerability in SourceCodester Simple Responsive Tourism Website 1.0 that allows attackers to execute arbitrary SQL commands via the username parameter in the login component. This affects all deployments of version 1.0 where the vulnerable file is accessible. Attackers can potentially steal sensitive data, modify database contents, or gain unauthorized access.
💻 Affected Systems
- SourceCodester Simple Responsive Tourism Website
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data manipulation, authentication bypass, and potential server takeover via SQL injection escalation.
Likely Case
Unauthorized access to sensitive user data, authentication bypass, and potential privilege escalation within the application.
If Mitigated
Limited impact with proper input validation and database permissions, potentially only error messages or failed login attempts.
🎯 Exploit Status
Exploit details are publicly available on GitHub. The vulnerability is in the login page which is typically accessible without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if available, or implement workarounds.
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd parameterized queries or prepared statements to the login.php file to prevent SQL injection.
Modify /tourism/classes/Login.php to use prepared statements instead of direct string concatenation
Web Application Firewall (WAF)
allDeploy a WAF with SQL injection protection rules to block malicious requests.
Configure WAF rules to detect and block SQL injection patterns in login requests
🧯 If You Can't Patch
- Implement network segmentation to isolate the vulnerable system from critical assets
- Deploy intrusion detection systems to monitor for SQL injection attempts
🔍 How to Verify
Check if Vulnerable:
Check if the file /tourism/classes/Login.php exists and contains unsanitized user input in SQL queries. Test with SQL injection payloads in the username field.Check Version:
Check the version information in the application's documentation or configuration files.Verify Fix Applied:
Test the login functionality with SQL injection payloads to ensure they are properly sanitized or blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL syntax in login attempts
- Multiple failed login attempts with SQL keywords
- Database error messages in application logs
Network Indicators:
- HTTP POST requests to /tourism/classes/Login.php containing SQL keywords in parameters
- Unusual database query patterns from web server
SIEM Query:
source="web_logs" AND (url="/tourism/classes/Login.php" AND (username="*' OR *" OR username="*;*" OR username="*--*"))