What is CVE-2026-39389?

CVE-2026-39389 is a medium-severity vulnerability in Ci4-Cms-Erp Ci4ms, classified under Improper Authorization. CVSS score: 6.7/10. Published 2026-04-08.

How severe is CVE-2026-39389?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Auth bypass in Ci4-Cms-Erp Ci4ms

CVE-2026-39389

CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to 0.31.4.0, This vulnerability is fixed in 0.31.4.0.

EPSS: 0.005 (38.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L.

Affected products

Ci4-cms-erp Ci4ms — versions < 0.31.4.0

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-39389?: CVE-2026-39389 is a medium-severity vulnerability in Ci4-Cms-Erp Ci4ms, classified under Improper Authorization. CVSS score: 6.7/10. Published 2026-04-08.
How severe is CVE-2026-39389?: Medium severity. CVSS v3 base score is 6.7 out of 10.