CVE-2026-39394

Published: Apr 08, 2026 Last Modified: Apr 16, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,1
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0002
Percentile
0,0th
Updated

EPSS Score Trend (Last 8 Days)

93

Improper Neutralization of CRLF Sequences ('CRLF Injection')

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity
Potential Impacts:
Modify Application Data
Applicable Platforms
All platforms may be affected
View CWE Details
Application

Ci4Ms by Ci4-Cms-Erp

Product Information
Vendor Ci4-Cms-Erp
Product Ci4Ms
Version Range Affected
To 0.31.4.0 (exclusive)
cpe:2.3:a:ci4-cms-erp:ci4ms:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/ci4-cms-erp/ci4ms/security/advisories/GH…
https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-vfhx-5459-qhqh
https://github.com/ci4-cms-erp/ci4ms/security/advisories/GH…
https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-vfhx-5459-qhqh