Security and Functionality Improvements Needed for SamaBTC.sn

[Salambadji1]

Security Issues

1. Contact Form Security

• The contact form lacks CSRF protection, making it vulnerable to cross-site request forgery attacks
• Input validation is minimal, using only htmlspecialchars() which doesn't prevent all XSS attacks
• Email headers can be injected as there's no proper email validation
• The PHP mail() function is being used directly without additional security measures

2. Missing Security Headers

• No Content Security Policy (CSP) headers
• No X-Frame-Options header to prevent clickjacking
• No X-XSS-Protection header
• No HSTS header for enforcing HTTPS

3. Form Submission

• Form doesn't use HTTPS (no SSL/TLS requirement specified)
• No rate limiting on form submissions
• No captcha or anti-spam measures

Functionality Improvements

1. Responsive Design

• Mobile navigation could be improved with a hamburger menu
• Images need responsive sizing attributes
• Consider adding srcset for responsive images

2. Accessibility

• Missing ARIA labels
• Color contrast should be verified for accessibility
• Form elements need proper labels and aria-descriptions

3. Performance

• No image optimization strategy
• No caching headers
• No asset minification

Required Changes

Contact Form Security

// Add CSRF Protection
session_start();
$csrf_token = bin2hex(random_bytes(32));
$_SESSION['csrf_token'] = $csrf_token;

// Add to form
<input type="hidden" name="csrf_token" value="<?php echo $csrf_token; ?>">

// Validate in contact.php
if (!hash_equals($_SESSION['csrf_token'], $_POST['csrf_token'])) {
    die('CSRF token validation failed');
}

Add Security Headers

# Add to .htaccess or server config
Header set Content-Security-Policy "default-src 'self';"
Header set X-Frame-Options "DENY"
Header set X-XSS-Protection "1; mode=block"
Header set Strict-Transport-Security "max-age=31536000; includeSubDomains"

Improve Form Validation

// Enhanced validation
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
    die('Invalid email format');
}

// Rate limiting
session_start();
if (!isset($_SESSION['last_submission'])) {
    $_SESSION['last_submission'] = time();
} else {
    if (time() - $_SESSION['last_submission'] < 300) { // 5 minutes
        die('Please wait before submitting again');
    }
}

Next Steps

1. Implement HTTPS across the entire site
2. Add proper input validation and sanitization
3. Implement rate limiting and anti-spam measures
4. Add proper error handling
5. Improve responsive design
6. Add accessibility features
7. Implement performance optimizations

Testing Required

• Security testing for XSS vulnerabilities
• CSRF protection verification
• Input validation testing
• Mobile responsiveness testing
• Accessibility testing
• Performance testing