-template-..-2f..-2f..-2f..-2froot-2f

If the application decodes input twice, %252F turns into %2F , which then turns into / .

-template-../../../../root/

: This usually represents a legitimate application parameter, directory, or prefix. Web applications often use templates to render pages dynamically (e.g., index.php?page=template ). Attackers prepend or append their malicious strings to these legitimate variables to blend in or satisfy basic application string checks. -template-..-2F..-2F..-2F..-2Froot-2F

In web security, some of the most dangerous vulnerabilities are also the simplest. One such flaw is Path Traversal If the application decodes input twice, %252F turns