[toast0]

> I don't think submitting this issue will earn OP any money as a "significant security vulnerability"

I don't think OP wants to claim a bounty (and anyway, probably doesn't have the details needed), OP just wants the issue fixed. Getting the issue looked at by someome who cares is more likely in the bounty program than through google customer support, because bug bounty triagers need to be empowered to communicate with people empowered to fix issues and google customer support isn't so empowered.

In a good customer service organization, an issue like this should get escalated, but that's not the reality at google, and not at too many other places either.