Now is a good time to review alternative frameworks. A lot of them are simpler to understand, rely on less magic, and have communities around them that are interested in security as well as functionality.
Now is a good time to patch your code and keep building your company.
Every framework has security bugs.
Jumping ship to a framework you don't understand, possibly one that is harder to update, is a knee-jerk reactionary response to the problem.
If all these compromises worry you, invest some time in setting a HIDS (Host Intrusion Detection System), subscribing to the relevant security mailing lists, and ensuring that your deployment workflow allows you to patch production code within a few minutes.