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.
History

Thu, 07 May 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 07 May 2026 05:45:00 +0000

Type Values Removed Values Added
First Time appeared Ci4-cms-erp
Ci4-cms-erp ci4ms
Vendors & Products Ci4-cms-erp
Ci4-cms-erp ci4ms

Thu, 07 May 2026 04:15:00 +0000

Type Values Removed Values Added
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.
Title CI4MS: Unrestricted PHP File Upload via Theme Installation Leads to Authenticated Remote Code Execution
Weaknesses CWE-434
References
Metrics cvssV4_0

{'score': 8.6, 'vector': 'CVSS: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-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-07T13:43:20.471Z

Reserved: 2026-04-21T14:15:21.959Z

Link: CVE-2026-41587

cve-icon Vulnrichment

Updated: 2026-05-07T13:43:05.794Z

cve-icon NVD

Status : Received

Published: 2026-05-07T04:16:27.860

Modified: 2026-05-07T04:16:27.860

Link: CVE-2026-41587

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-07T06:00:16Z