CVE-2026-41891 MEDIUM

CVE-2026-41891: CI4MS: Deactivated User Session Bypass (active=0)

Vendor Ci4-Cms-Erp
Product ci4ms
Weakness CWE-613 · Insufficient session expiration
Published May 7, 2026
Last update May 7, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

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 to before version 0.31.8.0, the auth filter has the deactivated/banned user check commented out. This issue has been patched in version 0.31.8.0.

Key dates

02Disclosure timeline

May 7, 2026 CVE published
May 7, 2026 Record updated