Security fixes are released for the latest minor version of NetBox Rack Design (currently 1.2.x). See COMPATIBILITY.md for the NetBox versions each release supports.
Please report vulnerabilities privately through a GitHub security advisory rather than a public issue. Include the plugin and NetBox versions, the steps to reproduce, and the impact you observed.
You can expect an acknowledgement within a few days. Fixes ship as a patch release, and the advisory is published once the release is on PyPI.
The plugin's permission model is described in docs/security.md.