This article is for educational and defensive purposes only. Unauthorized directory traversal attempts are illegal in most jurisdictions.

A vulnerability occurs when an application takes user input—like a template name—and plugs it directly into a file system API without proper sanitization.

This specific payload is designed to perform a attack. By using multiple sets of ../ , an attacker attempts to "break out" of the intended application folder and navigate upward through the server's file system.

So, the decoded string would look like:

But in your string: -template- at the front might be a placeholder for something like ?file=-template- or part of a filename expected by the server (e.g., include(-template- . ".php") ).

Escaping the Sandbox: Understanding Path Traversal Vulnerabilities

(or Directory Traversal) vulnerabilities in web applications. This specific format is designed to bypass security filters by using "dot-dot-slash" sequences that are URL-encoded ) and potentially prefixed with a keyword like -template- to trick the application's routing or template engine. 1. Anatomy of the Attack