What is CVE-2024-11390?

CVE-2024-11390 is a medium-severity vulnerability in Elastic Kibana, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 5.4/10. Published 2025-05-01.

How severe is CVE-2024-11390?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Arbitrary file upload in Elastic Kibana

CVE-2024-11390

Unrestricted upload of a file with dangerous type in Kibana can lead to arbitrary JavaScript execution in a victim’s browser (XSS) via crafted HTML and JavaScript files. The attacker must have access to the Synthetics app AND/OR have access to write to the synthetics indices.

Vulnerability class: Unrestricted File Upload

Published 2025-05-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (26.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000

Affected products

Elastic Kibana — versions 7.17.6, 8.4.0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

discuss.elastic.co/t/kibana-7-17-24-and-8-12-0-security-update-esa-2024-20/3777… (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2024-11390?: CVE-2024-11390 is a medium-severity vulnerability in Elastic Kibana, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 5.4/10. Published 2025-05-01.
How severe is CVE-2024-11390?: Medium severity. CVSS v3 base score is 5.4 out of 10.