Do I need fasteners to install this, or does it come with hardware?

Hardware is not included with this bracket. You'll use your vehicle's existing fastener holes to bolt it down — verify your fastener size and type against your service manual before assembly.

Will this work if my bumper cover is cracked or damaged?

This bracket supports the cover itself, not damage within it. If your cover is cracked, it needs replacement or repair separately; the bracket just holds whatever cover you mount to it in place.

Can I paint this bracket before installation, or should I wait?

Paint after installation to avoid damage during handling and fastening. If you do paint beforehand, mask off all mounting surfaces and fastener holes to ensure a clean, tight fit.