CVE-2025-7539
📋 TL;DR
This critical SQL injection vulnerability in code-projects Online Appointment Booking System 1.0 allows remote attackers to execute arbitrary SQL commands via the 'cid' parameter in /getdoctordaybooking.php. This can lead to unauthorized data access, modification, or deletion. All users running version 1.0 without proper input validation are affected.
💻 Affected Systems
- code-projects Online Appointment Booking System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including sensitive data exfiltration, authentication bypass, remote code execution, and system takeover
Likely Case
Unauthorized access to appointment data, patient information, and potential privilege escalation
If Mitigated
Limited impact with proper input validation and database permissions, potentially only error messages or limited data exposure
🎯 Exploit Status
Exploit details are publicly available on GitHub. SQL injection via URL parameter requires minimal technical skill.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://code-projects.org/
Restart Required: No
Instructions:
1. Check vendor website for updates 2. If no patch available, implement workarounds 3. Consider migrating to alternative software
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to sanitize the 'cid' parameter
Add parameter validation in PHP: $cid = filter_var($_GET['cid'], FILTER_VALIDATE_INT); if($cid === false) { die('Invalid input'); }
Web Application Firewall Rule
allBlock SQL injection patterns targeting /getdoctordaybooking.php
ModSecurity rule: SecRule ARGS:cid "@detectSQLi" "id:1001,phase:2,deny,status:403,msg:'SQLi attempt detected'"
🧯 If You Can't Patch
- Implement network segmentation to isolate the vulnerable system from sensitive data
- Deploy a web application firewall (WAF) with SQL injection protection rules
🔍 How to Verify
Check if Vulnerable:
Test /getdoctordaybooking.php?cid=1' OR '1'='1 and check for SQL errors or unexpected behaviorCheck Version:
Check application files or documentation for version informationVerify Fix Applied:
Test with SQL injection payloads and verify proper error handling or rejection📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple requests to /getdoctordaybooking.php with special characters in parameters
- Database queries with UNION, SELECT, or other SQL keywords from web requests
Network Indicators:
- HTTP requests containing SQL keywords (UNION, SELECT, INSERT) in URL parameters
- Unusual traffic patterns to the vulnerable endpoint
SIEM Query:
source="web_logs" AND uri_path="/getdoctordaybooking.php" AND (query_string="*UNION*" OR query_string="*SELECT*" OR query_string="*' OR '*" OR query_string="*--*" OR query_string="*;*" OR query_string="*/*")