Silverstripe CMS is a PHP framework and CMS with admin UI and module ecosystem. Hardening focuses on environment secrets, permission model, and dependency updates.
¶ 1) Protect secrets and administrative access
- store environment secrets outside repository and restrict filesystem access
- enforce strict CMS and admin group permissions
¶ 2) Control extensions and update cadence
- patch Silverstripe core and modules quickly, especially security releases
- run Composer dependency audits in CI
¶ 3) Harden runtime and deployment perimeter
- protect admin routes with MFA or SSO and reverse-proxy controls
- enforce HTTPS and secure cookie and session configuration
- Silverstripe docs: https://docs.silverstripe.org/
- Silverstripe source: https://github.com/silverstripe/silverstripe-cms
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