What is CVE-2026-39390?

CVE-2026-39390 is a medium-severity vulnerability in Ci4-cms-erp Ci4ms, classified under Cross-site Scripting. CVSS score: 5.5/10. Published 2026-04-08.

How severe is CVE-2026-39390?

Medium severity. CVSS v3 base score is 5.5 out of 10.

XSS in Ci4-cms-erp Ci4ms

CVE-2026-39390

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, the Google Maps iframe setting (cMap field) in compInfosPost() sanitizes input…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (1.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N.

Affected products

Ci4-cms-erp Ci4ms — versions < 0.31.4.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

https://github.com/ci4-cms-erp/ci4ms/security/advisories/GHSA-x3hr-cp7x-44r2 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-39390?: CVE-2026-39390 is a medium-severity vulnerability in Ci4-cms-erp Ci4ms, classified under Cross-site Scripting. CVSS score: 5.5/10. Published 2026-04-08.
How severe is CVE-2026-39390?: Medium severity. CVSS v3 base score is 5.5 out of 10.