CVE-2025-4247
📋 TL;DR
This critical SQL injection vulnerability in SourceCodester Simple To-Do List System 1.0 allows attackers to manipulate database queries via the /delete_task.php endpoint. Attackers can potentially read, modify, or delete database contents remotely. All users running the vulnerable version are affected.
💻 Affected Systems
- SourceCodester Simple To-Do List System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data destruction, or remote code execution if database permissions allow.
Likely Case
Unauthorized data access, data manipulation, or denial of service affecting the application's functionality.
If Mitigated
Limited impact if proper input validation and parameterized queries are implemented.
🎯 Exploit Status
Exploit details are publicly available and the attack can be performed remotely without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.sourcecodester.com/
Restart Required: No
Instructions:
No official patch available. Consider implementing manual fixes or replacing the software.
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd server-side validation to sanitize the ID parameter before processing.
Modify /delete_task.php to validate ID parameter as integer
Web Application Firewall Rules
allImplement WAF rules to block SQL injection patterns targeting /delete_task.php
Add WAF rule: Block requests to /delete_task.php with SQL injection patterns in parameters
🧯 If You Can't Patch
- Disable or restrict access to /delete_task.php endpoint
- Implement network segmentation to isolate the vulnerable system
🔍 How to Verify
Check if Vulnerable:
Test /delete_task.php endpoint with SQL injection payloads (e.g., ID=1' OR '1'='1)Check Version:
Check application version in admin panel or configuration filesVerify Fix Applied:
Verify that SQL injection attempts no longer succeed and proper error handling is in place📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple failed delete_task requests with SQL patterns
Network Indicators:
- HTTP POST requests to /delete_task.php containing SQL keywords
SIEM Query:
source="web_logs" AND uri="/delete_task.php" AND (message="sql" OR message="syntax" OR message="union")