CVE-2026-42401 (GCVE-0-2026-42401)

Vulnerability from cvelistv5 – Published: 2026-05-28 19:40 – Updated: 2026-05-29 16:47
VLAI
Title
Improper Neutralization of Input During Web Page Generation in Kibana Leading to Stored HTML Injection
Summary
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.
Severity
4.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-29 16:27 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Assigner
elastic CNA under the mitre root
CNA scorecard C 69/100 over 155 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Elastic Kibana Affected: 9.0.0 , ≤ 9.3.4 (semver)
Affected: 8.0.0 , ≤ 8.19.15 (semver)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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