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POWhich is more secure to pass the Object ID as a hidden field in the form or to pass it in the request itself
 

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  1. POWhich is more secure to pass the Object ID as a hidden field in the form or to pass it in the request itself
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    <p>i have the following edit view which contains a hidden field which contains the object ID:-</p> <pre><code>@model Elearning.Models.Class @{ ViewBag.Title = "Edit"; } @section scripts{ &lt;script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"&gt;&lt;/script&gt; &lt;script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"&gt;&lt;/script&gt; &lt;script src="@Url.Content("~/Scripts/WordCount.js")" type="text/javascript"&gt;&lt;/script&gt; } &lt;h2&gt;Edit123&lt;/h2&gt; @using (Html.BeginForm()) { @Html.ValidationSummary(true) &lt;fieldset&gt; &lt;legend&gt;Class&lt;/legend&gt; @Html.HiddenFor(model =&gt; model.ClassID) &lt;div class="editor-label"&gt; @Html.LabelFor(model =&gt; model.ClassName) &lt;/div&gt; &lt;div class="editor-field"&gt; @Html.EditorFor(model =&gt; model.ClassName) @Html.ValidationMessageFor(model =&gt; model.ClassName) &lt;/div&gt; &lt;div class="editor-label"&gt; @Html.LabelFor(model =&gt; model.ManagedBy) &lt;/div&gt; &lt;div class="editor-field"&gt; @Html.TextBoxFor(model =&gt; model.ManagedBy, new { value = "FL", disabled = "disabled" }) @Html.ValidationMessageFor(model =&gt; model.ManagedBy) &lt;/div&gt; @Html.HiddenFor(model =&gt; model.Timestamp) &lt;p&gt; &lt;input type="submit" value="Save" /&gt; &lt;/p&gt; &lt;/fieldset&gt; } &lt;div&gt; @Html.ActionLink("Back to Class List", "Index") &lt;/div&gt; </code></pre> <p>this view will be rendered using the following link:-</p> <pre><code>@Html.ActionLink("Edit", "Edit", new { id = item.ClassID }) </code></pre> <p>my edit action method signature look as the following which will not use the hidden field value:-</p> <pre><code>[HttpPost] public ActionResult Edit(int id, FormCollection colletion) { Class c = elearningrepository.GetClass(id); //code does here </code></pre> <p>i can also write the action method as follow which accept the value of the hidden field:-</p> <pre><code>[HttpPost] public ActionResult Edit(int ClassID, FormCollection colletion) { Class c = elearningrepository.GetClass(Classid); //code does here </code></pre> <p>so which apprach is more secure (if any ) passing the object ID as a hidden field OR passing it from the <code>Html.ActionLink</code> ? BR</p> <p><strong>Edit:-</strong> i am checking if the user who will edit the object is <code>IsManagedBy(User.Identity.Name)</code> before updating the object as follow:-</p> <pre><code> [HttpPost] public ActionResult Edit(int id, FormCollection colletion) { Class c = elearningrepository.GetClass(id); if (!c.IsManagedBy(User.Identity.Name)) { return View("Error"); } try { if (TryUpdateModel(c)) { // elearningrepository.setmod(c); elearningrepository.Save(); return RedirectToAction("Details", new { id = c.ClassID }); } } </code></pre>
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