How severe is CVE-2018-3823?

CVE-2018-3823 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-3823 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-3823?

CVE-2018-3823 primarily affects Elastic Elasticsearch X-pack. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-3823?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-3823 published?

CVE-2018-3823 was published on 2018-09-19 and last updated on 2026-06-17.

CVE-2018-3823

CVE-2018-3823 is a medium-severity vulnerability in Elastic Elasticsearch X-pack with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Elastic Elasticsearch X-pack
Published: 2018-09-19
Last modified: 2026-06-17

Description

X-Pack Machine Learning versions before 6.2.4 and 5.6.9 had a cross-site scripting (XSS) vulnerability. Users with manage_ml permissions could create jobs containing malicious data as part of their configuration that could allow the attacker to obtain sensitive information from or perform destructive actions on behalf of other ML users viewing the results of the jobs.

Frequently asked questions

What is CVE-2018-3823?: X-Pack Machine Learning versions before 6.2.4 and 5.6.9 had a cross-site scripting (XSS) vulnerability. Users with manage_ml permissions could create jobs containing malicious data as part of their configuration that could allow the attacker to obtain sensitive information from or perform destructive actions on behalf of other ML users viewing the results of the jobs.
How severe is CVE-2018-3823?: CVE-2018-3823 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-3823 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-3823?: CVE-2018-3823 primarily affects Elastic Elasticsearch X-pack. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-3823?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-3823 published?: CVE-2018-3823 was published on 2018-09-19 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:elastic:elasticsearch_x-pack:*:*:*:*:*:*:*:*
cpe:2.3:a:elastic:kibana_x-pack:*:*:*:*:*:*:*:*
cpe:2.3:a:elastic:logstash_x-pack:*:*:*:*:*:*:*:*

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