This appears to simply be a "magic item", although there may be very subtle hints at some sort of compulsion to acquire or steal the vessel by those who have experienced its effects.
With this in mind, I have to come right out of the gate and suggest that this really feels like it needs more. There may have been a point in time when simply magical items were enough, but in this day and age, I think most people will agree that something like this just doesn't have enough going on in order to make it over the hump.
Some other notes, in no particular order:
—2 armed security seems a bit much for a mug that doesn't move and doesn't have any 'screw you' properties.
—You may want to remove your "60-day ban on running experiments" and substitute that for something like "will be subject to disciplinary measures". The latter is more in line with the Foundations more firm tone.
—There are several points where you have "mL" for milliliters. This is fine, and I know several men and women of science who use L to avoid confusion with i's or 1's, but I am not sure of any other articles on SCP that measure the same way. This isn't really something you should or have to change, just feedback for the sake of consistency.
I'll reply with more as they become available. In general, your language is good and the article flows fine enough, I am just left wanting more meat.
