How severe is CVE-2023-3971?

CVE-2023-3971 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-3971 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3971?

CVE-2023-3971 primarily affects Redhat Ansible Automation Controller. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-3971?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-3971 published?

CVE-2023-3971 was published on 2023-10-04 and last updated on 2026-06-17.

CVE-2023-3971

CVE-2023-3971 is a high-severity vulnerability in Redhat Ansible Automation Controller with a CVSS 3.x base score of 7.3. 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: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Redhat Ansible Automation Controller
Published: 2023-10-04
Last modified: 2026-06-17

Description

An HTML injection flaw was found in Controller in the user interface settings. This flaw allows an attacker to capture credentials by creating a custom login page by injecting HTML, resulting in a complete compromise.

Frequently asked questions

What is CVE-2023-3971?: An HTML injection flaw was found in Controller in the user interface settings. This flaw allows an attacker to capture credentials by creating a custom login page by injecting HTML, resulting in a complete compromise.
How severe is CVE-2023-3971?: CVE-2023-3971 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-3971 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3971?: CVE-2023-3971 primarily affects Redhat Ansible Automation Controller. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-3971?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-3971 published?: CVE-2023-3971 was published on 2023-10-04 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:redhat:ansible_automation_controller:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ansible_automation_controller:4.4:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ansible_automation_platform:2.3:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ansible_automation_platform:2.4:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ansible_developer:1.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ansible_inside:1.1:*:*:*:*:*:*:*

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