int is_valid_msg_type(const char *msg_id, const char *msg_type)
{
	if (parse_msg_id(msg_id) < 0)
		return 0;
	parse_msg_type(msg_type);
	return 1;
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.