CVE-2026-42549 Flight: Path traversal in `make:controller` CLI creates arbitrary directories outside project root

Flight is an extensible micro-framework for PHP. Prior to 3.18.1, the make:controller CLI command calls mkdir..., recursive: true on a path built from the user-supplied controller name, before Nette's class-name validation runs. The class-file write is correctly rejected by Nette when the name...