Daniel Ovaska
Jun 27, 2024
visibility 2086
star star star star star
(1 votes)

Keeping the website secure by updating external packages

Did you see the latest warning from Optimizely to update this package with a critical security warning?

https://world.optimizely.com/documentation/Release-Notes/ReleaseNote/?releaseNoteId=CMS-33553

No? 

Security vulnerabilities in third party components like nuget packages or npm modules are one of the top 10 vulnerabilities for website according to OWASP

What makes it even more serious is that hackers can often scan the website for these vulnerabilities and often use them to compromise the website. 

Fortunately the tools to keep the website up to date already exist but often the process is lacking and must be agreed upon with stakeholders to secure funding for it. Stakeholders and product owners are often focused on new features and it's easy to fall behind on non-functional requirements like performance and security if these are not part of the development process. One way is to set a fixed value like 25% of development time to allocate to these areas and let developments team and tech lead suggest best bang-for-the-buck in these areas.

For an ordinary Optimizely website I recommend the more structured approach to securing third party packages and integrate it into your development process:

  1. Update all Optimizely code packages to latest minor version at least every 6 months.
  2. Use Visual Studio 2022 nuget package manager to locate any other vulnerable dotnet packages.
    There is even a nice little checkbox to show all vulnerable packages.
  3. Use npm audit to get a list of vulnerable frontend packages. 
  4. Update all moderate or higher at least

For a more security concerned websites I recommend the more ambitious process:

  1. Update all Optimizely code packages to latest minor version at the start of every sprint or every month.
  2. Use Visual Studio 2022 nuget package manager to locate any other vulnerable dotnet packages.
    There is even a nice little checkbox to show all vulnerable packages 
  3. Use npm audit to get a list of vulnerable frontend packages. 
  4. Update all vulnerable packages
  5. Use Azure Advanced Security or similar code scanner in build pipeline
    Set it up as a separate pipeline and run it manually before every deploy. 
    For really large solutions it might require build agents with more than normal disk space I've noticed.

For more security related tips for Optimizely see my security checklist

Happy coding and stay safe!

Jun 27, 2024

Comments

Mark Stott
Mark Stott Jul 9, 2024 08:58 AM

Hello Daniel,

First off, great article with some great tips.

If you are thinking about your website security and want to be able to manage your Content Security Policy, Cross Origin Resource Sharing policy and other response headers, you can always install my AddOn for Optimizely CMS 12 PAAS Core:

https://github.com/GeekInTheNorth/Stott.Security.Optimizely

Regards,
Mark

error Please login to comment.
Latest blogs
You’re not headless. You’re hybrid — and that’s the CMS 12 default.

For CMS 12 / Commerce teams with a React (or similar) storefront who keep hearing “just go headless” or “just move to Graph.” This is Part 1 of Fin...

Hanskumar Tripathi | Aug 13, 2026

Stott Security for Optimizely SaaS CMS

Introduction Stott Security  has been helping developers and editors manage Content Security Policies and security headers on  Optimizely PaaS CMS...

Mark Stott | Aug 13, 2026

Optimizely XML Resource Builder: A Visual Studio Extension for Language Resource Files

Anyone who has worked on a larger Optimizely solution will know the feeling. You add or update a page type, block type, or shared base class,

Adnan Zameer | Aug 13, 2026 |

Optimizely SaaS CMS Management API: The Write Side of Headless

Everything I’ve written in this series so far has been about reading content — Optimizely Graph, webhooks, ISR, caching layers. But at some point y...

Kiran Patil | Aug 12, 2026 |