  We study the model of Einstein-Maxwell theory minimally coupling to a massive
charged self-interacting scalar field, parameterized by the quartic and hexic
coupling, labelled by $\lambda$ and $\beta$, respectively. In the absence of
scalar field, there is a class of counterexamples to cosmic censorship.
Moveover, we investigate the properties of full nonlinear solution with nonzero
scalar field, and argue that, by assuming massive charged self-interacting
scalar field with sufficiently large charge above one certain bound, these
counterexamples can be removed. In particular, this bound on charge for
self-interacting scalar field is no longer equal to the weak gravity bound for
free scalar case. In the quartic case, the bounds are below free scalar case
for $\lambda<0$, while above free scalar case for $\lambda>0$. Meanwhile, in
the hexic case, the bounds are above free scalar case for both $\beta>0$ and
$\beta<0$.
