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Concrete CMS

In-context editing CMS for marketers and site owners

Content Management Systems ★ 852 stars Easy setup MIT

Concrete CMS is an open-source content management system known for its intuitive in-context editing, letting users edit pages directly on the front end. It targets non-technical website owners who want easy visual control.

Official siteSource code

Key features

  • In-context front-end editing
  • Drag-and-drop block layouts
  • Built-in marketplace
  • Workflow and versioning

Pros & cons

Strengths

  • Very approachable for non-technical editors
  • No separate admin needed for content

Trade-offs

  • Smaller community
  • Fewer themes available

Is Concrete CMS secure?

No known vulnerabilities affect Concrete CMS's latest release (9.5.5). OSV.dev lists 215 past advisories for the project; none of them applies to this release. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

  • Most recent fixed advisory CVE-2026-85385, published 2026-09-16 (28 days ago), fixed in 9.5.4

Source: OSV.dev, checked 2026-10-14. How this is measured.

Concrete CMS replaces

Self-hosted Wix alternativesSelf-hosted Squarespace alternatives

Health badge

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SelfHostIndex: 85 · excellent

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