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TI-2021-15694 Aliases CVE-2021-37936GHSA-p8x3-m7c8-mcj5

Cross-site scripting in Elastic Kibana

Priority LOW 25CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Partial Red Hat: 3 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-79.

Summary

It was discovered that Kibana was not sanitizing document fields containing HTML snippets. Using this vulnerability, an attacker with the ability to write documents to an elasticsearch index could inject HTML. When the Discover app highlighted a search term containing the HTML, it would be rendered for the user.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00503 43rd percentileScored 2026-11-07
Fix Partial Kibana (Elastic): 7.14.1Red Hat: 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ElasticKibanabefore 7.14.17.14.1Patch availableCNA
  • Kibana VendorElastic Affected before 7.14.1 Fixed in 7.14.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*before 7.14.1VulnerableElastic
  • cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:* Versions before 7.14.1 Vulnerable ·Elastic

Remediation

  • Fix · CNA Kibana (Elastic) Fixed in 7.14.1

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat JBoss Fuse 6AffectedNo fix planned: Out of support scope
Red Hat JBoss Fuse Service Works 6AffectedNo fix planned: Out of support scope
Red Hat OpenShift Container Platform 3.11AffectedNo fix planned: Out of support scope
Not affected: 4 products
  • Logging Subsystem for Red Hat OpenShift
  • Red Hat OpenStack Platform 13 (Queens)
  • Red Hat OpenStack Platform 16.1
  • Red Hat OpenStack Platform 16.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-37936
  2. 2026-10-03 Alias added: GHSA-p8x3-m7c8-mcj5

References

Advisory 2

  • TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
  • TI-2018-12328 Kibana versions before 6.4.3 and 5.6.13 contain an arbitrary file inclusion flaw in the… CVSS 3.0CRITICAL 9.8
  • TI-2025-18692 Kibana arbitrary code execution via prototype pollution CVSS 3.1CRITICAL 9.8
  • TI-2020-05660 Code injection in Elastic Kibana CVSS 3.1HIGH 8.8
  • TI-2024-24803 Deserialization of untrusted data in Elastic Kibana CVSS 3.1CRITICAL 9.9
  • TI-2024-24800 Kibana arbitrary code execution via YAML deserialization CVSS 3.1CRITICAL 9.1
See all 188 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences