--- title: ASP.NET MVC preview 5's AntiForgeryToken helper method... description: ASP.NET MVC preview 5 introduces the HtmlHelper.AntiForgeryToken method, which renders a hidden input field with a unique token on a view. Pairing this with... canonical: https://daily.dev/posts/asp-net-mvc-preview-5-s-antiforgerytoken-helper-method-and-attribute-itjmgo4fq twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: ASP.NET MVC preview 5's AntiForgeryToken helper method and attribute | daily.dev og:description: ASP.NET MVC preview 5 introduces the HtmlHelper.AntiForgeryToken method, which renders a hidden input field with a unique token on a view. Pairing this with... og:url: https://daily.dev/posts/asp-net-mvc-preview-5-s-antiforgerytoken-helper-method-and-attribute-itjmgo4fq og:image: https://api.daily.dev/og/posts/itJmgo4FQ.png og:image:alt: ASP.NET MVC preview 5's AntiForgeryToken helper method and attribute og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # ASP.NET MVC preview 5's AntiForgeryToken helper method and attribute **[Maarten Balliauw](https://daily.dev/sources/maartenballiauw)** · 1 min read · 0 upvotes · 0 comments ## Summary ASP.NET MVC preview 5 introduces the HtmlHelper.AntiForgeryToken method, which renders a hidden input field with a unique token on a view. Pairing this with the [ValidateAntiForgeryToken] action filter attribute validates each form submission against that token, and tampering with the field or submitting from a different view instance throws an AntiForgeryTokenValidationException. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How do I use the AntiForgeryToken helper in ASP.NET MVC preview 5 to prevent CSRF attacks? Place <%=Html.AntiForgeryToken()%> in a view to render a hidden input field named __MVC_AntiForgeryToken containing a unique generated value. Decorate the corresponding action method with the [ValidateAntiForgeryToken] attribute so every form post is checked against that token; tampering with the field or posting from a different rendered view instance throws an AntiForgeryTokenValidationException. _daily.dev surfaces practical ASP.NET MVC security patterns like this for developers hardening form submissions against CSRF._ ## Similar posts on daily.dev - [The silent filter: How an ASP.NET MVC quirk became a security leak](https://daily.dev/posts/the-silent-filter-how-an-asp-net-mvc-quirk-became-a-security-leak-wec0w8625) · The Art of Simplicity · 2 upvotes · 0 comments - [CSRF Protection without Tokens or Hidden Form Fields](https://daily.dev/posts/csrf-protection-without-tokens-or-hidden-form-fields-a651bvhew) · Hacker News · 0 upvotes · 0 comments - [CSRF from Scratch: Browser Mechanics, Attacks, and Spring Security Implementation \[Full Handbook\]](https://daily.dev/posts/csrf-from-scratch-browser-mechanics-attacks-and-spring-security-implementation-full-handbook--4km8mrcii) · freeCodeCamp · 17 upvotes · 4 comments - [Django CSRF Token: Misconfiguration or Misunderstanding?](https://daily.dev/posts/django-csrf-token-misconfiguration-or-misunderstanding--fr0seue9w) · InfoSec Write-ups · 0 upvotes · 0 comments --- Tags: [#.net](https://daily.dev/tags/.net) [View this post on daily.dev](https://daily.dev/posts/asp-net-mvc-preview-5-s-antiforgerytoken-helper-method-and-attribute-itjmgo4fq) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"ASP.NET MVC preview 5's AntiForgeryToken helper method and attribute","url":"https://daily.dev/posts/asp-net-mvc-preview-5-s-antiforgerytoken-helper-method-and-attribute-itjmgo4fq","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/asp-net-mvc-preview-5-s-antiforgerytoken-helper-method-and-attribute-itjmgo4fq"},"datePublished":"2026-10-04T13:05:04.512Z","dateModified":"2026-10-04T13:11:24.444Z","description":"ASP.NET MVC preview 5 introduces the HtmlHelper.AntiForgeryToken method, which renders a hidden input field with a unique token on a view. 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