How severe is CVE-2017-7400?

CVE-2017-7400 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2017-7400 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-7400?

CVE-2017-7400 primarily affects Openstack Horizon. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-7400?

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

When was CVE-2017-7400 published?

CVE-2017-7400 was published on 2017-04-03 and last updated on 2026-06-17.

CVE-2017-7400

CVE-2017-7400 is a medium-severity vulnerability in Openstack Horizon with a CVSS 3.x base score of 4.8. 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 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Openstack Horizon
Published: 2017-04-03
Last modified: 2026-06-17

Description

OpenStack Horizon 9.x through 9.1.1, 10.x through 10.0.2, and 11.0.0 allows remote authenticated administrators to conduct XSS attacks via a crafted federation mapping.

Frequently asked questions

What is CVE-2017-7400?: OpenStack Horizon 9.x through 9.1.1, 10.x through 10.0.2, and 11.0.0 allows remote authenticated administrators to conduct XSS attacks via a crafted federation mapping.
How severe is CVE-2017-7400?: CVE-2017-7400 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2017-7400 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-7400?: CVE-2017-7400 primarily affects Openstack Horizon. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-7400?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-7400 published?: CVE-2017-7400 was published on 2017-04-03 and last updated on 2026-06-17.

References

Affected products (19)

cpe:2.3:a:openstack:horizon:9.0.0:*:*:*:*:*:*:*
cpe:2.3:a:openstack:horizon:9.0.0:b1:*:*:*:*:*:*
cpe:2.3:a:openstack:horizon:9.0.0:b2:*:*:*:*:*:*
cpe:2.3:a:openstack:horizon:9.0.0:b3:*:*:*:*:*:*
cpe:2.3:a:openstack:horizon:9.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:openstack:horizon:9.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:openstack:horizon:9.0.1:*:*:*:*:*:*:*
cpe:2.3:a:openstack:horizon:9.1.0:*:*:*:*:*:*:*
cpe:2.3:a:openstack:horizon:9.1.1:*:*:*:*:*:*:*
cpe:2.3:a:openstack:horizon:10.0.0:*:*:*:*:*:*:*
cpe:2.3:a:openstack:horizon:10.0.0:b1:*:*:*:*:*:*
cpe:2.3:a:openstack:horizon:10.0.0:b2:*:*:*:*:*:*
cpe:2.3:a:openstack:horizon:10.0.0:b3:*:*:*:*:*:*
cpe:2.3:a:openstack:horizon:10.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:openstack:horizon:10.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:openstack:horizon:10.0.0:rc3:*:*:*:*:*:*
cpe:2.3:a:openstack:horizon:10.0.1:*:*:*:*:*:*:*
cpe:2.3:a:openstack:horizon:10.0.2:*:*:*:*:*:*:*
cpe:2.3:a:openstack:horizon:11.0.0:*:*:*:*:*:*:*

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