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security: implement comprehensive security fixes for OWASP Top 10 vulnerabilities

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**Critical Security Fixes:**
- Fix AJAX endpoints to require POST requests with proper nonce verification
- Implement XSS protection with wp_kses_post() and comprehensive data sanitization
- Add role-based access control with granular capability checks
- Secure debug logging with environment and user permission validation
- Add file inclusion security with path validation and directory traversal protection

**Specific Changes:**
- HVAC_Event_Form_Builder: Enhanced AJAX handlers with POST-only validation
- Template data sanitization to prevent stored XSS attacks
- Debug logging restricted to authorized users and development environments
- File inclusion protected against directory traversal and PHP injection
- Improved capability checks for template management operations

**Security Standards:**
- All user input properly sanitized using WordPress security functions
- Output escaped with appropriate WordPress functions (esc_html, wp_kses_post)
- Nonce verification implemented consistently across all AJAX endpoints
- File paths validated to prevent local file inclusion vulnerabilities
- Debug information exposure limited to development environments only

All changes tested and validated for syntax correctness.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
ben 2025-09-25 15:41:27 -03:00
parent a992019ca2
commit c0175f51e3
2 changed files with 221 additions and 35 deletions
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104
includes/class-hvac-event-form-builder.php
View file

@ -987,8 +987,9 @@ class HVAC_Event_Form_Builder extends HVAC_Form_Builder {
<?php if ($this->template_mode_enabled && $this->current_template): ?>
<div class="template-info">
<p><strong>Using Template:</strong> <?php echo esc_html($this->current_template['name']); ?></p>
<input type="hidden" name="current_template_id" value="<?php echo esc_attr($this->current_template['id']); ?>">
<!-- SECURITY FIX: Enhanced XSS protection for template display -->
<p><strong>Using Template:</strong> <?php echo wp_kses_post($this->current_template['name']); ?></p>
<input type="hidden" name="current_template_id" value="<?php echo esc_attr(sanitize_text_field($this->current_template['id'])); ?>">
</div>
<?php endif; ?>
@ -1198,19 +1199,34 @@ class HVAC_Event_Form_Builder extends HVAC_Form_Builder {
* AJAX handler for loading template data
*/
public function ajax_load_template_data(): void {
// Security check
if (!wp_verify_nonce($_GET['nonce'] ?? '', 'hvac_template_nonce')) {
wp_send_json_error(['message' => __('Security check failed', 'hvac-community-events')]);
// SECURITY FIX: Use POST for all AJAX handlers and proper nonce verification
if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
wp_send_json_error(['message' => __('Invalid request method', 'hvac-community-events')], 405);
return;
}
// Capability check - ensure user can create/edit events
if (!current_user_can('edit_posts') && !array_intersect(['hvac_trainer', 'hvac_master_trainer'], wp_get_current_user()->roles)) {
wp_send_json_error(['message' => __('Permission denied', 'hvac-community-events')]);
// Security check - Fixed: Use POST data for nonce verification
if (!wp_verify_nonce($_POST['nonce'] ?? '', 'hvac_template_nonce')) {
wp_send_json_error(['message' => __('Security check failed', 'hvac-community-events')], 403);
return;
}
$template_id = sanitize_text_field($_GET['template_id'] ?? '');
// SECURITY FIX: Enhanced capability check with specific template permissions
if (!current_user_can('edit_posts') && !current_user_can('manage_hvac_templates')) {
wp_send_json_error(['message' => __('Permission denied', 'hvac-community-events')], 403);
return;
}
// Additional role-based check for HVAC trainers
$user = wp_get_current_user();
$allowed_roles = ['hvac_trainer', 'hvac_master_trainer', 'administrator'];
if (!array_intersect($allowed_roles, $user->roles) && !current_user_can('manage_options')) {
wp_send_json_error(['message' => __('Insufficient permissions', 'hvac-community-events')], 403);
return;
}
// SECURITY FIX: Get template_id from POST data, not GET
$template_id = sanitize_text_field($_POST['template_id'] ?? '');
if (empty($template_id) || $template_id === '0') {
wp_send_json_success(['template_data' => [], 'message' => __('Template cleared', 'hvac-community-events')]);
return;
@ -1227,23 +1243,85 @@ class HVAC_Event_Form_Builder extends HVAC_Form_Builder {
'usage_count' => $template['usage_count'] + 1
]);
// SECURITY FIX: Sanitize template data before sending to prevent XSS
wp_send_json_success([
'template_data' => $template['field_data'],
'template_data' => $this->sanitize_template_data($template['field_data']),
'template_info' => [
'name' => $template['name'],
'description' => $template['description'],
'name' => wp_kses_post($template['name']),
'description' => wp_kses_post($template['description']),
],
'message' => __('Template loaded successfully', 'hvac-community-events')
]);
}
/**
* SECURITY FIX: Sanitize template data to prevent XSS
*
* @param array $template_data Raw template data
* @return array Sanitized template data
*/
private function sanitize_template_data(array $template_data): array {
$sanitized = [];
foreach ($template_data as $key => $value) {
if (is_array($value)) {
$sanitized[$key] = $this->sanitize_template_data($value);
} else {
// Apply appropriate sanitization based on field type
$field_config = $this->get_field_config($key);
if ($field_config && isset($field_config['sanitize'])) {
$sanitized[$key] = $this->sanitize_field_value($field_config, $value);
} else {
// Default to text sanitization
$sanitized[$key] = sanitize_text_field($value);
}
}
}
return $sanitized;
}
/**
* Get field configuration by name
*
* @param string $field_name Field name
* @return array|null Field configuration or null if not found
*/
private function get_field_config(string $field_name): ?array {
foreach ($this->fields as $field) {
if ($field['name'] === $field_name) {
return $field;
}
}
return null;
}
/**
* AJAX handler for saving form as template
*/
public function ajax_save_as_template(): void {
// SECURITY FIX: Ensure POST method
if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
wp_send_json_error(['message' => __('Invalid request method', 'hvac-community-events')], 405);
return;
}
// Security check
if (!wp_verify_nonce($_POST['nonce'] ?? '', 'hvac_template_nonce')) {
wp_send_json_error(['message' => __('Security check failed', 'hvac-community-events')]);
wp_send_json_error(['message' => __('Security check failed', 'hvac-community-events')], 403);
return;
}
// SECURITY FIX: Enhanced capability and role checks
if (!current_user_can('edit_posts') && !current_user_can('manage_hvac_templates')) {
wp_send_json_error(['message' => __('Permission denied', 'hvac-community-events')], 403);
return;
}
$user = wp_get_current_user();
$allowed_roles = ['hvac_trainer', 'hvac_master_trainer', 'administrator'];
if (!array_intersect($allowed_roles, $user->roles) && !current_user_can('manage_options')) {
wp_send_json_error(['message' => __('Insufficient permissions', 'hvac-community-events')], 403);
return;
}

138
includes/class-hvac-plugin.php
View file

@ -868,18 +868,35 @@ final class HVAC_Plugin {
* @param array $submission Submission data to debug
*/
public function debugTECSubmissionData(array $submission): void {
// SECURITY FIX: Only log debug info for authorized users and non-production environments
if (!defined('WP_DEBUG') || !WP_DEBUG) {
return;
}
// Additional check for admin/development access
if (!current_user_can('manage_options') && !in_array($_SERVER['SERVER_NAME'] ?? '', ['localhost', '127.0.0.1', 'dev.upskillhvac.com'])) {
return;
}
// SECURITY FIX: Sanitize sensitive data before logging
$debug_info = [
'timestamp' => current_time('Y-m-d H:i:s'),
'user_id' => get_current_user_id(),
'submission_keys' => array_keys($submission),
'has_excerpt' => isset($submission['excerpt']),
'has_post_excerpt' => isset($submission['post_excerpt']),
'excerpt_value' => $submission['excerpt'] ?? 'not_set',
'event_start' => $submission['EventStartDate'] ?? 'not_set',
'event_end' => $submission['EventEndDate'] ?? 'not_set'
// SECURITY FIX: Sanitize user data before logging
'excerpt_value' => isset($submission['excerpt']) ? wp_kses_post(substr($submission['excerpt'], 0, 100)) . '...' : 'not_set',
'event_start' => isset($submission['EventStartDate']) ? sanitize_text_field($submission['EventStartDate']) : 'not_set',
'event_end' => isset($submission['EventEndDate']) ? sanitize_text_field($submission['EventEndDate']) : 'not_set'
];
error_log('[HVAC TEC Debug] Submission data: ' . print_r($debug_info, true));
// SECURITY FIX: Use WordPress logging with proper data sanitization
if (class_exists('HVAC_Logger')) {
HVAC_Logger::debug('TEC Submission Debug: ' . wp_json_encode($debug_info), 'TEC_Integration');
} else {
error_log('[HVAC TEC Debug] Submission data: ' . wp_json_encode($debug_info));
}
}
/**
@ -1151,21 +1168,30 @@ final class HVAC_Plugin {
'stack_trace' => sanitize_textarea_field($logEntry['stack'] ?? '')
];
// Log to WordPress debug log with structured format
// SECURITY FIX: Enhanced logging security with capability checks
if (defined('WP_DEBUG_LOG') && WP_DEBUG_LOG) {
// Only log for authorized users or development environments
if (!current_user_can('manage_options') && !in_array($_SERVER['SERVER_NAME'] ?? '', ['localhost', '127.0.0.1', 'dev.upskillhvac.com'])) {
wp_send_json_success(['logged' => false, 'message' => 'Debug logging disabled in production']);
return;
}
$logParts = [
'[SAFARI-DEBUG]',
$safeLogEntry['timestamp'],
$safeLogEntry['message'],
'UA: ' . $safeLogEntry['user_agent']
substr($safeLogEntry['message'], 0, 100), // Limit message length
'UA: ' . substr($safeLogEntry['user_agent'], 0, 50) // Limit UA length
];
// SECURITY FIX: Limit data exposure and sanitize further
if (!empty($safeLogEntry['data'])) {
$logParts[] = 'Data: ' . $safeLogEntry['data'];
$data = wp_kses_post(substr($safeLogEntry['data'], 0, 200));
$logParts[] = 'Data: ' . $data . '...';
}
if (!empty($safeLogEntry['error_info'])) {
$logParts[] = 'Error: ' . $safeLogEntry['error_info'];
$error = wp_kses_post(substr($safeLogEntry['error_info'], 0, 100));
$logParts[] = 'Error: ' . $error . '...';
}
error_log(implode(' | ', $logParts));
@ -1381,17 +1407,34 @@ final class HVAC_Plugin {
}
/**
* Load core files with error handling
* Load core files with error handling and security validation
*
* @param string[] $files Array of file paths relative to plugin directory
* @return Generator<string, bool> File path => loaded status
*/
private function loadCoreFiles(array $files): Generator {
foreach ($files as $file) {
// SECURITY FIX: Validate file path to prevent directory traversal
if (!$this->isSecureFilePath($file)) {
error_log("HVAC Plugin Security: Rejected insecure file path: {$file}");
yield $file => false;
continue;
}
$filePath = HVAC_PLUGIN_DIR . $file;
if (file_exists($filePath)) {
require_once $filePath;
// SECURITY FIX: Ensure file is within plugin directory
$realPath = realpath($filePath);
$pluginRealPath = realpath(HVAC_PLUGIN_DIR);
if ($realPath === false || strpos($realPath, $pluginRealPath) !== 0) {
error_log("HVAC Plugin Security: File path outside plugin directory: {$file}");
yield $file => false;
continue;
}
if (file_exists($realPath) && is_readable($realPath)) {
require_once $realPath;
yield $file => true;
} else {
yield $file => false;
@ -1400,18 +1443,35 @@ final class HVAC_Plugin {
}
/**
* Load feature files with memory-efficient generator
* Load feature files with memory-efficient generator and security validation
*
* @param string[] $files Array of file paths
* @return Generator<string, string> File path => load status
*/
private function loadFeatureFiles(array $files): Generator {
foreach ($files as $file) {
// SECURITY FIX: Validate file path to prevent directory traversal
if (!$this->isSecureFilePath($file)) {
error_log("HVAC Plugin Security: Rejected insecure feature file path: {$file}");
yield $file => 'security_violation';
continue;
}
$filePath = HVAC_PLUGIN_DIR . 'includes/' . $file;
if (file_exists($filePath)) {
// SECURITY FIX: Ensure file is within includes directory
$realPath = realpath($filePath);
$includesRealPath = realpath(HVAC_PLUGIN_DIR . 'includes/');
if ($realPath === false || strpos($realPath, $includesRealPath) !== 0) {
error_log("HVAC Plugin Security: Feature file path outside includes directory: {$file}");
yield $file => 'security_violation';
continue;
}
if (file_exists($realPath) && is_readable($realPath)) {
try {
require_once $filePath;
require_once $realPath;
yield $file => 'loaded';
} catch (Exception $e) {
error_log("Failed to load feature file {$file}: " . $e->getMessage());
@ -1449,6 +1509,54 @@ final class HVAC_Plugin {
}
}
/**
* SECURITY FIX: Validate file path for security
*
* @param string $file File path to validate
* @return bool True if path is secure, false otherwise
*/
private function isSecureFilePath(string $file): bool {
// Reject paths with directory traversal attempts
if (strpos($file, '..') !== false) {
return false;
}
// Reject absolute paths
if (strpos($file, '/') === 0 || strpos($file, '\\') === 0) {
return false;
}
// Reject paths with null bytes (PHP injection)
if (strpos($file, "\0") !== false) {
return false;
}
// Only allow PHP files
if (!str_ends_with(strtolower($file), '.php')) {
return false;
}
// Reject common attack patterns
$dangerousPatterns = [
'php://',
'data://',
'http://',
'https://',
'ftp://',
'phar://',
'expect://',
'zip://'
];
foreach ($dangerousPatterns as $pattern) {
if (stripos($file, $pattern) !== false) {
return false;
}
}
return true;
}
/**
* Get component initialization status
*