SHSelfHostIndex
WO

WonderCMS

Tiny flat-file CMS that is one of the smallest available

Content Management Systems ★ 741 stars Easy setup MIT

WonderCMS is an extremely small flat-file content management system that can run as a handful of files. It offers click-to-edit content and a minimal plugin and theme system.

Official siteSource code

Key features

  • Extremely small footprint
  • Click-to-edit content
  • One-step installation
  • Simple plugin system

Pros & cons

Strengths

  • Incredibly easy to deploy
  • Almost no maintenance

Trade-offs

  • Very limited for complex sites
  • Single-user focused

Is WonderCMS secure?

No known vulnerabilities affect WonderCMS's latest release (3.6.0). OSV.dev lists 30 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-2025-57055, published 2025-09-17 (392 days ago)

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

WonderCMS replaces

Self-hosted WordPress alternatives

Health badge

Maintain WonderCMS? Add its health score to your README. The badge links back to this page.

SelfHostIndex: 79 · good

Markdown
[![SelfHostIndex health score for WonderCMS](https://selfhostindex.com/badge/wondercms.svg)](https://selfhostindex.com/app/wondercms/)
HTML
<a href="https://selfhostindex.com/app/wondercms/"><img src="https://selfhostindex.com/badge/wondercms.svg" alt="SelfHostIndex health score for WonderCMS"></a>
reStructuredText
.. image:: https://selfhostindex.com/badge/wondercms.svg
   :alt: SelfHostIndex health score for WonderCMS
   :target: https://selfhostindex.com/app/wondercms/

The score is recomputed on every nightly rebuild from public repository data — see how it is calculated.

Similar content management systems apps