Master Secure Coding

Master Secure Coding

Level up your security skills with hands-on code review challenges. Identify and fix vulnerabilities to become a better engineer.

Challenge of the WeekEasy
100 points

Support Tickets

Review the code for SecureBank's customer support portal built with Express.js and TypeScript. This internal tool allows customers to submit support tickets with file attachments (receipts, screenshots, etc.) and later retrieve them. The development team recently refactored the attachment download feature to improve performance. Examine how file retrieval is handled to ensure customer data remains protected.

WEBJAVASCRIPT / TYPESCRIPTPATH TRAVERSAL

Vulnerable Code

typescript

Instructions:

  1. Browse through the files to understand the application structure
  2. Find and click on the line containing the vulnerability
  3. Click "Check Line" to verify your answer
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