CVE-2018-14655

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.

• CWE-79
• CWE-79

• https://access.redhat.com/errata/RHSA-2018:3592Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:3593Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:3595Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14655Issue Tracking, Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:3592Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:3593Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:3595Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14655Issue Tracking, Vendor Advisory

Published

Nov 13, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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