关于C#出现标识未更新的漏洞解决代码片段

[c#]代码库

  方法  private string getGUID()
    {
        System.Guid guid = new Guid();
        guid = Guid.NewGuid();
        string str = guid.ToString();
        return str;
    }    

 存储   string getguid = getGUID();
                HttpCookie guid = new HttpCookie("guidNumck", getguid);
               
                Response.Cookies.Add(guid);
                Session["guidNum"] = getguid;

比较 HttpCookie guidCookies = Request.Cookies["guidNumck"];
        if (guidCookies != null)
        {

            string guid = Session["guidNum"] as string;
            if (guidCookies.Value.ToString() != guid)
            {
                
            }
        }