PT-2026-31320 · Ci4 Cms Erp · Ci4Ms
Published
2026-04-08
·
Updated
2026-04-08
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CVE-2026-39393
CVSS v3.1
8.1
High
| AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
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.
Fix
Missing Authentication
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Weakness Enumeration
Related Identifiers
Affected Products
Ci4Ms