CVE-2025-11476
📋 TL;DR
This SQL injection vulnerability in SourceCodester Simple E-Commerce Bookstore 1.0 allows attackers to manipulate database queries through the login_username parameter. Attackers can potentially access, modify, or delete sensitive data including customer information and order records. All deployments of version 1.0 are affected.
💻 Affected Systems
- SourceCodester Simple E-Commerce Bookstore
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, or remote code execution via database functions
Likely Case
Unauthorized access to sensitive customer data, order information, and potential administrative credential theft
If Mitigated
Limited impact with proper input validation and database permissions restricting damage to non-critical data
🎯 Exploit Status
Exploit is publicly available and requires minimal technical skill to execute
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.sourcecodester.com/
Restart Required: No
Instructions:
No official patch available. Consider migrating to alternative software or implementing workarounds.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to sanitize login_username parameter
Modify /index.php to add: $username = mysqli_real_escape_string($conn, $_POST['login_username']);
Web Application Firewall
allDeploy WAF with SQL injection protection rules
🧯 If You Can't Patch
- Isolate the application behind a reverse proxy with SQL injection filtering
- Implement network segmentation to limit database access from the application server
🔍 How to Verify
Check if Vulnerable:
Test login form with SQL injection payload: ' OR '1'='1 in username fieldCheck Version:
Check application version in admin panel or readme filesVerify Fix Applied:
Attempt SQL injection payloads and verify they are rejected or sanitized📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple failed login attempts with SQL-like patterns
Network Indicators:
- HTTP POST requests to /index.php containing SQL keywords in parameters
SIEM Query:
source="web_logs" AND uri="/index.php" AND (payload CONTAINS "OR '1'='1" OR payload CONTAINS "UNION SELECT" OR payload CONTAINS "--")