Currently the advisors (Security right now) only support the following severity levels:
and there are many more standard ones (Info comes to mind but there are more). We should implement (and publish) what the accepted levels are for creating advisors and I'm guessing this should be mirrored in Alerting as well
Additionally, at least in Security Advisor the levels we do support are re-mapped on the front-end as:
which either needs to be documented somewhere or realigned somehow.
How to test
All 8 severities should be usable now, on both Alerting and Advisor checks.