How severe is CVE-2018-8728?

CVE-2018-8728 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-8728 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-2018-8728?

CVE-2018-8728 affects Kontena. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-8728?

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

When was CVE-2018-8728 published?

CVE-2018-8728 was published on 2018-03-15 and last updated on 2026-06-17.

CVE-2018-8728

CVE-2018-8728 is a medium-severity vulnerability in Kontena with a CVSS 3.x base score of 6.1. 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 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Kontena
Published: 2018-03-15
Last modified: 2026-06-17

Description

server/app/views/static/code.html in Kontena before 1.5.0 allows XSS in "kontena master login --remote" code display, as demonstrated by /code#code= in a URI.

Frequently asked questions

What is CVE-2018-8728?: server/app/views/static/code.html in Kontena before 1.5.0 allows XSS in "kontena master login --remote" code display, as demonstrated by /code#code= in a URI.
How severe is CVE-2018-8728?: CVE-2018-8728 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-8728 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-2018-8728?: CVE-2018-8728 affects Kontena. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-8728?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-8728 published?: CVE-2018-8728 was published on 2018-03-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:kontena:kontena:*:*:*:*:*:*:*:*

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