CVE-2018-3824

Severity: medium (CVSS 6.1 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-09-19 · updated 2026-06-17
Weakness: CWE-79

Description

X-Pack Machine Learning versions before 6.2.4 and 5.6.9 had a cross-site scripting (XSS) vulnerability. If an attacker is able to inject data into an index that has a ML job running against it, then when another user views the results of the ML job it could allow the attacker to obtain sensitive information from or perform destructive actions on behalf of that other ML user.

Affected products

Elasticsearch X-Pack: before 5.6.9; from 6.0.0 before 6.2.4 — fixed in 5.6.9, 6.2.4
Elastic Kibana X-Pack: before 5.6.9; from 6.0.0 before 6.2.4 — fixed in 5.6.9, 6.2.4
Elastic Logstash X-Pack: before 5.6.9; from 6.1.0 before 6.2.4 — fixed in 5.6.9, 6.2.4

How to fix

Upgrade to a fixed version: Elasticsearch X-Pack 5.6.9, 6.2.4; Elastic Kibana X-Pack 5.6.9, 6.2.4; Elastic Logstash X-Pack 5.6.9, 6.2.4. Check the vendor advisory for mitigations.

References

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