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Comparison

Orchard Core vs Umbraco

Orchard Core and Umbraco both land on Depends.

Umbraco

umbraco.com

Depends
Confidence: High

Buy it if you have .NET developers and need a flexible, multi-site or headless CMS . the open-source core is free and battle-tested.

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Orchard Core versus Umbraco
CompareOrchard CoreUmbraco
VerdictDependsDepends
Best for.NET/C# developer teams.NET developer teams
Who it's not forNon-technical teams wanting a simple siteNo-code marketers wanting a DIY site builder
PrivacyPublic CVE history: multiple XSS issues since 2020; recent releases like 3.0.1 include security fixes.⁶Actively patched open-source CMS with several published CVEs in 2025-2026; fixes ship via advisories.15
Support qualityCommunity and docs only; no vendor SLAPaid support sold; Cloud complaints on Reddit
Public sentimentReddit .NET threads show a small, loyal developer community, with some questioning real-world adoption.⁵G2 users praise flexibility and long-term value, while Reddit opinion splits sharply on Umbraco Cloud hosting.
Biggest gotcha~20 CVEs listed; you need a patching and monitoring process⁷Reddit thread titled 'Umbraco Cloud - Avoid like the plague' targets the hosting, not the CMS12

Pick Orchard Core when

  • .NET/C# developer teams
  • Modular or headless CMS builds
  • Government and public-sector .NET sites
  • Zero-budget projects with dev capacity

When Orchard Core is not a fit

  • Non-technical teams wanting a simple site
  • Marketers needing WYSIWYG editing without devs
  • Anyone without C#/.NET skills in-house
  • Teams needing vendor support SLAs

Pick Umbraco when

  • .NET developer teams
  • Multi-site enterprises
  • Content-heavy marketing sites
  • Headless CMS projects

When Umbraco is not a fit

  • No-code marketers wanting a DIY site builder
  • Simple brochure or blog sites . massively overkill
  • Teams without .NET or Windows dev resources
  • Buyers wanting fuss-free managed hosting (Cloud backlash)

Sources

  1. Orchard Core . official siteorchardcore.net
    official
  2. OrchardCMS/OrchardCore on GitHubgithub.com
    official
  3. Orchard Core 3.0.1 release notesdocs.orchardcore.net
    official
  4. Does anyone use Orchard Core CMS? . Redditreddit.com
    review
  5. Shoutout to Orchard Core . Redditreddit.com
    review
  6. Orchard Core stored XSS . CVE-2022-0274miggo.io
    security
  7. OrchardCore vulnerabilities . GCVE databasedb.gcve.eu
    security
  8. Orchard Core . Jamstack headless CMS listingjamstack.org
    official
  9. Umbraco CMS - official siteumbraco.com
    official
  10. Umbraco Products - G2 reviewsg2.com
    review
  11. G2 Winter 2026 Leader announcementumbraco.com
    official
  12. Reddit: Umbraco Cloud - Avoid like the plaguereddit.com
    review
  13. Reddit: Best .NET CMS for enterprise developmentreddit.com
    review
  14. NVD: CVE-2025-67288nvd.nist.gov
    security
  15. CVE-2026-46616 (SentinelOne)sentinelone.com
    security
  16. Umbraco Forms advisory (GitHub)github.com
    security