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SQL INJECTION PREVENTION AUDIT
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🔍 SCANNING FILES
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  Scanned 460 PHP files
  Found 263 database query calls
  Safe queries (prepared statements): 258
  Unsafe queries: 5

🚨 SECURITY ISSUES FOUND
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  ❌ controllers/BankAccountController.php:263
     Type: Direct variable interpolation in query()
     Code: $db->query("UPDATE bank_accounts SET is_default = 0 WHERE id != ?", [$id]);

  ❌ controllers/EmailMarketingController.php:528
     Type: Direct variable interpolation in query()
     Code: $db->query("DELETE FROM mailing_list_subscribers WHERE mailing_list_id = ?", [$id]);

  ❌ controllers/SettingsController.php:2020
     Type: Direct variable interpolation in query()
     Code: $db->query("UPDATE payment_terms SET is_default = 0 WHERE id != ?", [$id]);

  ❌ controllers/QuoteTemplateController.php:104
     Type: Direct variable interpolation in query()
     Code: $db->query("UPDATE quote_templates SET is_default = 0 WHERE id != ?", [$id]);

  ❌ controllers/BudgetController.php:353
     Type: Direct variable interpolation in query()
     Code: $db->query("DELETE FROM budget_lines WHERE budget_id = ?", [$id]);

  Total Issues: 5

📊 STATISTICS
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  Files Scanned:           460
  Total Query Calls:       263
  Safe Queries:            258 (98.1%)
  Unsafe Queries:          5

💡 RECOMMENDATIONS
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  1. Replace all unsafe queries with prepared statements
  2. Use parameter binding for all user input
  3. Never concatenate user input directly into SQL queries
  4. Use PDO::prepare() and execute() with bound parameters

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AUDIT COMPLETE
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