CVE-2026-39393
PHP vulnerability analysis and mitigation

CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to 0.31.4.0, the install route guard in ci4ms relies solely on a volatile cache check (cache('settings')) combined with .env file existence to block post-installation access to the setup wizard. When the database is temporarily unreachable during a cache miss (TTL expiry or admin-triggered cache clear), the guard fails open, allowing an unauthenticated attacker to overwrite the .env file with attacker-controlled database credentials, achieving full application takeover. This vulnerability is fixed in 0.31.4.0.


SourceNVD

Related PHP vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-39394HIGH8.1
  • PHPPHP
  • ci4-cms-erp/ci4ms
NoYesApr 08, 2026
CVE-2026-39393HIGH8.1
  • PHPPHP
  • ci4-cms-erp/ci4ms
NoYesApr 08, 2026
CVE-2026-39976HIGH7.1
  • PHPPHP
  • laravel/passport
NoYesApr 09, 2026
CVE-2026-39392MEDIUM5.5
  • PHPPHP
  • ci4-cms-erp/ci4ms
NoYesApr 08, 2026
CVE-2026-39391MEDIUM4.8
  • PHPPHP
  • ci4-cms-erp/ci4ms
NoYesApr 08, 2026

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