CVE-2025-50383
📋 TL;DR
CVE-2025-50383 is a SQL injection vulnerability in Easy!Appointments v1.5.1 that allows attackers to execute arbitrary SQL commands via the order_by parameter. This affects all users running the vulnerable version, potentially exposing database contents and enabling unauthorized data access or manipulation.
💻 Affected Systems
- alextselegidis Easy!Appointments
📦 What is this software?
Easy\!appointments by Easyappointments
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data exfiltration, modification, or deletion; potential authentication bypass leading to administrative access.
Likely Case
Unauthorized data extraction from the appointments database, including sensitive user information and appointment details.
If Mitigated
Limited impact with proper input validation and parameterized queries in place.
🎯 Exploit Status
Proof of concept available on GitHub demonstrates exploitation. SQL injection via order_by parameter requires minimal technical skill.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Upgrade to a newer version if available, or implement workarounds.
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to restrict order_by parameter to safe values
Modify PHP code to validate order_by parameter against whitelist of allowed column names
Web Application Firewall Rule
allBlock SQL injection patterns in order_by parameter
Add WAF rule: deny requests with SQL keywords in order_by parameter
🧯 If You Can't Patch
- Implement network segmentation to restrict access to the application
- Enable detailed logging and monitoring for SQL injection attempts
🔍 How to Verify
Check if Vulnerable:
Test by sending SQL injection payloads in order_by parameter and observing database errors or unexpected behavior.Check Version:
Check version.php file or admin interface for version informationVerify Fix Applied:
Test with SQL injection payloads after implementing fixes; successful fix should reject malicious input.📡 Detection & Monitoring
Log Indicators:
- SQL syntax errors in application logs
- Unusual order_by parameter values containing SQL keywords
Network Indicators:
- HTTP requests with SQL injection patterns in order_by parameter
SIEM Query:
web_requests WHERE url_parameter CONTAINS 'order_by' AND (url_parameter CONTAINS 'UNION' OR url_parameter CONTAINS 'SELECT' OR url_parameter CONTAINS 'FROM')