CVE-2026-41201
Critical
Description
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.
SeverityCritical
CVSS9.1
Exploit probability—
ProductCi4-cms-erp/ci4ms
PublishedMay 7, 2026
First seenMay 7, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- ci4-cms-erp/ci4ms0.31.5.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ci4-cms-erp/ci4msPackagist | v < 0.31.5.0 | 0.31.5.0 |
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