Description
Improper Neutralization of Input During Web Page Generation (CWE-79) in Kibana can lead to stored HTML injection. A user with write access to an Elasticsearch index could persist crafted markup which, when subsequently rendered through an affected Kibana view by another user, was not sufficiently sanitized. Successful exploitation could result in unauthorized UI manipulation and outbound network requests issued from the viewing user's browser session.
Published: 2026-05-28
Score: 4.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 29 May 2026 21:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*

Fri, 29 May 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 28 May 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Elastic
Elastic kibana
Vendors & Products Elastic
Elastic kibana

Thu, 28 May 2026 19:45:00 +0000

Type Values Removed Values Added
Description Improper Neutralization of Input During Web Page Generation (CWE-79) in Kibana can lead to stored HTML injection. A user with write access to an Elasticsearch index could persist crafted markup which, when subsequently rendered through an affected Kibana view by another user, was not sufficiently sanitized. Successful exploitation could result in unauthorized UI manipulation and outbound network requests issued from the viewing user's browser session.
Title Improper Neutralization of Input During Web Page Generation in Kibana Leading to Stored HTML Injection
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 4.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: elastic

Published:

Updated: 2026-05-29T16:47:35.539Z

Reserved: 2026-04-27T10:14:34.318Z

Link: CVE-2026-42401

cve-icon Vulnrichment

Updated: 2026-05-29T16:28:02.797Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-28T20:16:23.620

Modified: 2026-05-29T21:17:18.420

Link: CVE-2026-42401

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-28T20:30:25Z

Weaknesses