CVE-2026-41201: CI4-CMS-ERP CI4MS

Critical severity, CVSS 9.1. EPSS: 0.6% chance of exploitation in the next 30 days.

CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. In version 0.31.4.0, an attacker can achieve Full Account Takeover & Privilege Escalation via Stored DOM XSS in backup module filename field manipulated via a sql file that tampers with the file name field to contain hidden XSS payload. This issue has been patched in version 0.31.5.0.

Affected products

Published 2026-05-07. Last modified 2026-06-17.