CVE-2018-14655
4.6 · MEDIUMA flaw was found in Keycloak 3.4.3.Final, 4.0.0.Beta2, 4.3.0.Final.
Overview
CVE-2018-14655 is a medium-severity vulnerability. It was published on November 13, 2018 and has a CVSS 3.0 base score of 4.6 (MEDIUM).
This vulnerability has a CVSS 3.0 base score of 4.6, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical description
A flaw was found in Keycloak 3.4.3.Final, 4.0.0.Beta2, 4.3.0.Final. When using 'response_mode=form_post' it is possible to inject arbitrary Javascript-Code via the 'state'-parameter in the authentication URL. This allows an XSS-Attack upon succesfully login.
Remediation
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
References
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Frequently asked questions
What is CVE-2018-14655?
CVE-2018-14655 is a medium-severity vulnerability. It was published on November 13, 2018 and has a CVSS 3.0 base score of 4.6 (MEDIUM).
How severe is CVE-2018-14655?
This vulnerability has a CVSS 3.0 base score of 4.6, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2018-14655?
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2018-14655?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-14655 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.
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