cPanel before 11.54.0.0 allows unauthenticated arbitrary code execution via DNS NS entry poisoning (SEC-64).
cPanel before 11.54.0.0 allows unauthorized password changes via Webmail API commands (SEC-65).
cPanel before 11.54.0.0 allows unauthorized zone modification via the WHM API (SEC-66).
cPanel before 11.54.0.0 allows subaccounts to discover sensitive data through comet feeds (SEC-29).
cPanel before 11.54.0.0 allows a bypass of the e-mail sending limit (SEC-60).