Improper Neutralization of Input During Web Page Generation in Kibana Leading to Stored HTML Injection (Elastic Kibana)

CVE-2026-42401
MEDIUM 4.1

At a glance

Source
NVD
EPSS
EPSS 0.14 % · percentile 3 ()
State
PUBLISHED
Published
Updated
Assigner
elastic
NVD status
Analyzed

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.

Weaknesses (CWE)

  • CWE-79 — Improper Neutralization of Input During Web Page Generation

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 4.1CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:Nelastic
CVSS 3.1MEDIUM 4.1CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:NNVD · security@elastic.co (Secondary)
CVSS 3.1MEDIUM 5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Elastic · Kibanaaffected 9.0.0 ≤ 9.3.4 ; affected 8.0.0 ≤ 8.19.15

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD