What is CVE-2026-45139?

CVE-2026-45139 is a medium-severity vulnerability in Ci4-cms-erp Ci4ms, classified under External Control of File Name or Path. CVSS score: 6.5/10. Published 2026-07-20.

How severe is CVE-2026-45139?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Ci4-cms-erp Ci4ms

CVE-2026-45139

CI4MS is a CodeIgniter 4-based content management system skeleton. Prior to version 0.31.9.0, the Fileeditor module enforces an extension allowlist (`['css','js','html','txt','json','sql','md']`) on content-write operations (`saveFile`, `c…

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H.

Affected products

Ci4-cms-erp Ci4ms — versions < 0.31.9.0

Weakness classification (CWE)

CWE-73 — External Control of File Name or Path

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-45139?: CVE-2026-45139 is a medium-severity vulnerability in Ci4-cms-erp Ci4ms, classified under External Control of File Name or Path. CVSS score: 6.5/10. Published 2026-07-20.
How severe is CVE-2026-45139?: Medium severity. CVSS v3 base score is 6.5 out of 10.