CVE-2023-3971: Controller: html injection in custom login info

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-10-04 · updated 2026-06-17
Weakness: CWE-80

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.

Affected products

RedHat Ansible Automation Controller: before 4.3.11; 4.4 — fixed in 4.3.11
Red Hat Ansible Automation Platform: 2.3, 2.4
RedHat Ansible Developer: 1.0
RedHat Ansible Inside: 1.1

How to fix

Upgrade to a fixed version: RedHat Ansible Automation Controller 4.3.11. Check the vendor advisory for mitigations.

References

https://access.redhat.com/errata/RHSA-2023:4340
https://access.redhat.com/errata/RHSA-2023:4590
https://access.redhat.com/security/cve/CVE-2023-3971
https://bugzilla.redhat.com/show_bug.cgi?id=2226965
https://access.redhat.com/errata/RHSA-2023:4340
https://access.redhat.com/errata/RHSA-2023:4590
https://access.redhat.com/security/cve/CVE-2023-3971
https://bugzilla.redhat.com/show_bug.cgi?id=2226965

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