How severe is CVE-2017-8443?

CVE-2017-8443 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2017-8443 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-8443?

CVE-2017-8443 affects Elastic Kibana. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-8443?

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

When was CVE-2017-8443 published?

CVE-2017-8443 was published on 2017-06-30 and last updated on 2026-06-17.

CVE-2017-8443

CVE-2017-8443 is a medium-severity vulnerability in Elastic Kibana with a CVSS 3.x base score of 6.5. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Elastic Kibana
Published: 2017-06-30
Last modified: 2026-06-17

Description

In Kibana X-Pack security versions prior to 5.4.3 if a Kibana user opens a crafted Kibana URL the result could be a redirect to an improperly initialized Kibana login screen. If the user enters credentials on this screen, the credentials will appear in the URL bar. The credentials could then be viewed by untrusted parties or logged into the Kibana access logs.

Frequently asked questions

What is CVE-2017-8443?: In Kibana X-Pack security versions prior to 5.4.3 if a Kibana user opens a crafted Kibana URL the result could be a redirect to an improperly initialized Kibana login screen. If the user enters credentials on this screen, the credentials will appear in the URL bar. The credentials could then be viewed by untrusted parties or logged into the Kibana access logs.
How severe is CVE-2017-8443?: CVE-2017-8443 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2017-8443 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-8443?: CVE-2017-8443 affects Elastic Kibana. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-8443?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-8443 published?: CVE-2017-8443 was published on 2017-06-30 and last updated on 2026-06-17.

References

https://www.elastic.co/community/security

Affected products (1)

cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*

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