Description
It was found that Keycloak would accept a HOST header URL in the admin console and use it to determine web resource locations. An attacker could use this flaw against an authenticated user to attain reflected XSS via a malicious server.
Remediation
References
http://www.securityfocus.com/bid/101618
https://access.redhat.com/errata/RHSA-2017:2904
https://access.redhat.com/errata/RHSA-2017:2905
https://access.redhat.com/errata/RHSA-2017:2906
https://bugzilla.redhat.com/show_bug.cgi?id=1489161
Related Vulnerabilities
CVE-2019-10776 Vulnerability in npm package git-diff-apply
CVE-2019-19919 Vulnerability in maven package org.webjars.bower:handlebars
CVE-2020-10244 Vulnerability in maven package dev.paseto:jpaseto-impl
CVE-2017-16037 Vulnerability in npm package gomeplus-h5-proxy
CVE-2018-20000 Vulnerability in maven package org.bedework:bw-webdav