cvedb.io
CVE-2026-42549
MEDIUM · CVSS 4.4
EPSS exploitation probability: 0%
Published 2026-05-13T20:16:21.927 · Last modified 2026-06-17T10:48:01.167

Summary

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.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.