PT-2026-31321 · Ci4 Cms Erp · Ci4Ms

Published 2026-04-08 · Updated 2026-04-08 · CVE-2026-39394

NVD

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::index() controller reads the host POST parameter without any validation and passes it directly into updateEnvSettings(), which writes it into the .env file via preg replace(). Because newline characters in the value are not stripped, an attacker can inject arbitrary configuration directives into the .env file. The install routes have CSRF protection explicitly disabled, and the InstallFilter can be bypassed when cache('settings') is empty (cache expiry or fresh deployment). This vulnerability is fixed in 0.31.4.0.

Fix

Weakness Enumeration

CWE-93

Related Identifiers

CVE-2026-39394

Affected Products

Ci4Ms

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-39394 · Security Note
• https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-vfhx-5459-qhqh · Note