CRITICALVulnerability
Verified
Global

NVD CRITICAL: CVE-2026-34571 — CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, mo...

Wednesday, April 1, 2026 at 10:16 PM UTC·Source: NIST NVD

Updated: Monday, April 6, 2026 at 04:34 PM UTC

Executive Summary

CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to version 0.31.0.0, a Stored Cross-Site Scripting (Stored XSS) vulnerability exists in the backend user management functionality. The application fails to properly sanitize user-controlled input before rendering it in the administrative interface, all

Analysis

CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to version 0.31.0.0, a Stored Cross-Site Scripting (Stored XSS) vulnerability exists in the backend user management functionality. The application fails to properly sanitize user-controlled input before rendering it in the administrative interface, allowing attackers to inject persistent JavaScript code. This results in automatic execution whenever backend users access the affected page, enabling session hijacking, privilege escalation, and full administrative account compromise. This issue has been patched in version 0.31.0.0. CVSS Score: 9.9. Published: 2026-04-01T22:16:21.030.

Indicators of Compromise (2)

CVE (1)
CVE-2026-34571
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Apr 1, 2026. Verified by: NIST.

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