Hey! We've released Gridbox 2.20.1, an important security update resolving a recently discovered vulnerability. We recommend installing the latest version at your earliest convenience.
Once the update is installed, take a moment to review your administrator accounts, update administrator passwords, and inspect the components/com_gridbox/assets/uploads directory to make sure it doesn't contain executable PHP files.
If you have any questions or would like help with the update or a website review, our team will be happy to assist.