Always keep your versions up to date using ioBroker's stable or latest repository.
Outdated releases will not be supported.
If you identify a vulnerability, please consider that this may affect other people/projects as well. This in mind please email me (Yannic Labonte yannic.labonte@gmail.com) first, so I can react and maybe fix the issue, before publishing it to the public (e.g. in a github issue).