A flaw was found in the SAML client registration in Keycloak that could allow an administrator to register malicious JavaScript URIs as Assertion Consumer Service POST Binding URLs (ACS), posing a Cross-Site Scripting (XSS) risk. This issue may allow a malicious admin in one realm or a client with registration access to target users in different realms or applications, executing arbitrary JavaScript in their contexts upon form submission. This can enable unauthorized access and harmful actions, compromising the confidentiality, integrity, and availability of the complete KC instance.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 6.0NVD modified 2026-10-27 05:16
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 13
- https://access.redhat.com/errata/RHSA-2024:1353
- https://access.redhat.com/errata/RHSA-2024:1867
- https://access.redhat.com/errata/RHSA-2024:1868
- https://access.redhat.com/errata/RHSA-2024:2945
- https://access.redhat.com/errata/RHSA-2024:4057
- https://access.redhat.com/security/cve/CVE-2023-6717
- https://bugzilla.redhat.com/show_bug.cgi?id=2253952
- https://access.redhat.com/errata/RHSA-2024:1867
- https://access.redhat.com/errata/RHSA-2024:1868
- https://access.redhat.com/errata/RHSA-2024:2945
- https://access.redhat.com/errata/RHSA-2024:4057
- https://access.redhat.com/security/cve/CVE-2023-6717
- https://bugzilla.redhat.com/show_bug.cgi?id=2253952