HIGH SeverityCVSS 4.08.6CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVE-2026-41587

Last updated May 07, 2026 · Published May 07, 2026

Description

CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. From version 0.26.0.0 to before version 0.31.7.0, a theme upload feature allows any authenticated backend user with theme-upload permission to achieve remote code execution (RCE) by uploading a crafted ZIP file. PHP files inside the ZIP are installed into the web-accessible public/ directory with no extension or content filtering, making them directly executable via HTTP. This issue has been patched in version 0.31.7.0.

Affected products

1 listed

ci4-cms-erp:ci4ms

Mappings

CWE

CWE-434

CAPEC

None listed.

Research

File upload security: validation, isolation, and scanningInsecure file uploads are still one of the fastest paths to RCE. Validate type and size, store outside the web…

Guides

Secure File Uploads in Node.jsValidation, scanning, storage isolation, and safe serving patterns.

Training

CVE-2026-41587

Description

Affected products

Mappings

Related