Vulnerability in Ci4-Cms-Erp Ci4ms
CVE-2026-34572
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, the application fails to immediately revoke active user sessions when an account is deactivated. Due to a logic flaw in the backend design, account state changes are enforced only during authentication (login), not for already-established sessions. The system implicitly assumes that authenticated users remain trusted for the lifetime of their session. There is no session expiration or account expiration mechanism in place, causing deactivated accounts to retain indefinite access until the user manually logs out. This behavior breaks the intended access control policy and results in persistent unauthorized access, representing a critical security flaw. This issue has been patched in version 0.31.0.0.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (50.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.007 · change: +0.001
Affected products
- Ci4-Cms-Erp Ci4ms — versions < 0.31.0.0
Weakness classification (CWE)
References
- github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-8fq3-c5w3-pj3q (Exploit, Vendor Advisory)
- github.com/ci4-cms-erp/ci4ms/releases/tag/0.31.0.0 (Release Notes)
Frequently asked questions
- What is CVE-2026-34572?
- CVE-2026-34572 is a high-severity vulnerability in Ci4-Cms-Erp Ci4ms, classified under Improper Access Control. CVSS score: 8.8/10. Published 2026-04-01.
- How severe is CVE-2026-34572?
- High severity. CVSS v3 base score is 8.8 out of 10.