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Editorial Team
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Asked: 2026-06-18T03:14:23+00:00

I’m looking for modules that should be added to a Node/Express app that address

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I’m looking for modules that should be added to a Node/Express app that address the general security concerns listed below:

  • Injection Vulnerabilities (JavaScript, SQL, Mongo, HTML)
  • Session fixation and hijacking
  • Cross-Site Vulnerabilities (Scripting, Request Forgery)
  • Mass Assignment
  • insert relevant concern here

Thanks for your help!

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Some resources I’ve found:

Excellent talk (11/2012): http://lanyrd.com/2012/asfws/sxzbm/ (see slides)

ServerFault question (2011-2012): https://serverfault.com/questions/285123/is-node-js-mature-for-enterprise-security

Blog post on topic (9/2012): http://codefol.io/posts/29-Why-Rails-and-not-Sinatra-or-Node-js-

Exploit tester: https://code.google.com/p/skipfish/

Passport Module: https://github.com/jaredhanson/passport

EveryAuth Module: https://github.com/bnoguchi/everyauth

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1 Answer

  1. Editorial Team

    I wrote a blog post that gives a great starting point on Writing Secure Express.js Apps. It covers a few other things beyond csrf and helmet as was mentioned by zeMirco.

    The other thing is you can’t compare express.js to rails. They are apples and oranges. For example, there is no ORM that is bundled with Express, that implementation or use of a third party module is up to you.

    I’ll try and give a breakdown of each of your concerns.

    -Injection Vulnerabilities (JavaScript, SQL, Mongo, HTML)

    Again, these are things not built into express. The closest thing would be XSS worries over injection in templates. Jade or EJS templates that are commonly used with express output encode < > ” ‘ and & by default, but remember there are other contexts like user input into JavaScript or CSS that you would need to worry about.

    -Session fixation and hijacking

    Again see the blog post above, but Express is based on and uses most of the connect middleware one of these is the session middleware. Biggest thing here is to properly set your cookie flags.

    -Cross-Site Vulnerabilities (Scripting, Request Forgery)

    See above. It also comes with express.csrf() middleware. The blog post mentioned shows how to implement it.

    -Mass Assignment

    Not an issue with express.js as it has no concepts in which this type of vulnerable would be applicable, however the custom logic you write may be in fact vulnerable to this problem, so again it’s a problem of verifying if your code is vulnerable or if the third party module you used is…

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