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 contro…
Published: 2026-05-13 · CVSS: 4.4 · CVSS 3.1
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 contains /, but the recursive directory creation side effect is already committed — including directories located outside the project root through ../ traversal. This vulnerability is fixed in 3.18.1.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7