Project Map runs a local web server, and a note sent from the map page wakes your Claude Code session with that note's text. So security reports are taken seriously - especially anything that lets another website, another program or another account put words in front of Claude, or read or change your maps.
Please report vulnerabilities privately, not in a public issue: use Report a vulnerability on GitHub. Include the steps to reproduce, your operating system and browser. You'll get a reply within a week.
What the plugin protects against, and what it does not, is described in Security model.
Only the latest version on main is supported.