fix: [csvimport] Added missing field in additional header & fixed MISP Event variable name

Author: chrisr3d

misp_modules/modules/import_mod/csvimport.py

@@ -86,6 +86,7 @@
     "event_analysis",
     "event_date",
     "event_tag",
+    "event_timestamp"
 ]
 misp_extended_csv_header = misp_standard_csv_header + misp_context_additional_fields
 
@@ -185,7 +186,7 @@ def __build_misp_event(self, attribute_indexes, object_indexes):
                         objects[object_id] = misp_object
                     objects[object_id].add_attribute(**attribute)
                 else:
-                    self.event.add_attribute(**attribute)
+                    self.misp_event.add_attribute(**attribute)
             for misp_object in objects.values():
                 self.misp_event.add_object(**misp_object)
         else: