Some applications write user-controlled data to log files, then allow template inclusion. A payload like -template-../../../../../var/log/apache2/access.log could lead to log file inclusion and eventual remote code execution.
Four traversals are excessive if the target application root is three levels deep (e.g., /var/www/app/templates/). However, attackers often insert extra ../ sequences to: -template-..-2F..-2F..-2F..-2Froot-2F
A robust Linux path ../../../../root/ resolves to the absolute root directory after the system resolves .. properly. Some applications write user-controlled data to log files,
Since this payload uses a non-standard encoding (-2F instead of %2F), a simple blacklist for %2F would fail. A robust Linux path
This payload is designed to exploit a Path Traversal vulnerability (CWE-22). The goal of the attacker is to escape the web application's intended directory structure and access sensitive files on the server.
Targeted File:
Typically, this payload would be followed by a filename, such as .ssh/id_rsa (private SSH keys) or .bash_history. The attacker is attempting to read files that only the root user should have access to.