CVE-2025-25015: Kibana arbitrary code execution via prototype pollution

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Description

Prototype pollution in Kibana leads to arbitrary code execution via a crafted file upload and specifically crafted HTTP requests. In Kibana versions >= 8.15.0 and < 8.17.1, this is exploitable by users with the Viewer role. In Kibana versions 8.17.1 and 8.17.2 , this is only exploitable by users that have roles that contain all the following privileges: fleet-all, integrations-all, actions:execute-advanced-connectors

Classification

CVE ID: CVE-2025-25015

CVSS Base Severity: CRITICAL

CVSS Base Score: 9.9

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected Products

Vendor: Elastic

Product: Kibana

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 0.11935 (how common is this exploit)

EPSS Date: 2025-03-13 (when was this score calculated)

Timeline