How is what you are describing any different than what happened today? Except the vulnerabilities were also explained. You can say that sites are getting hacked right now due to them releasing the security update.

>I'm some rando so no one's even heard of me

Why do think people need to have heard of you. If you are reporting this issue directly to distro maintainers, security companies, hosting companies, etc first you can help use their names as part of the marketing push to raise awareness.