Please do not report security issues in public issues, discussions or pull requests.
Report privately through GitHub: Security tab → Report a vulnerability (https://github.com/launchcal/launchcal.github.io/security/advisories/new).
Include what is affected, how to reproduce it and the impact. You will get a reply as soon as possible; this is a one-person project, so please allow a few days.
Only the latest version on main is supported.