CVE-2017-16214: Directory Traversal in peiserver

The vulnerability stems from improper path resolution when handling user requests. The example attack uses path traversal sequences in the URL, indicating the request handling function directly maps URL paths to filesystem paths without validation. In Node.js static servers, this is typically done in the core request handler (often named serveFile or similar) that resolves paths using methods like path.join() without checking for parent directory traversal attempts. The high confidence comes from the vulnerability pattern matching classic path traversal flaws in static file servers.