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.
CVE-2023-6717
This medium-severity CVE scores 6.0 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 72% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 6.0
- EG Score
- 6.0(medium)
- EPSS
- 49.2%
- KEV
- Not listed
Published
April 25, 2024
Last Modified
June 2, 2026
References (7)
- linkhttps://access.redhat.com/errata/RHSA-2024:1353
- linkhttps://access.redhat.com/errata/RHSA-2024:1867
- linkhttps://access.redhat.com/errata/RHSA-2024:1868
- linkhttps://access.redhat.com/errata/RHSA-2024:2945
- linkhttps://access.redhat.com/errata/RHSA-2024:4057
- linkhttps://access.redhat.com/security/cve/CVE-2023-6717
- linkhttps://bugzilla.redhat.com/show_bug.cgi?id=2253952
Vendor Advisories for CVE-2023-6717(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(4)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | openshift-serverless-1/logic-swf-devmode-rhel8:1.33.0-5 | 2024-06-24 | redhat |
| redhat | keycloak | 2024-05-21 | redhat |
| redhat | rhbk/keycloak-rhel9-operator:22-16 | 2024-04-16 | redhat |
| redhat | patch | 2024-03-18 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
Maven(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| org.keycloak:keycloak-services | 23.0.0 ... 24.0.2 (11 versions) | 24.0.3 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(4)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 10× in last 7d / 42× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:26 UTCEPSS rescore
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- 2026-05-22 02:45 UTCEG score recompute
- 2026-05-22 02:45 UTCVendor advisory
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Related CVEs(same vendor + same CWE)
Same vendor
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Frequently asked(5)
What is CVE-2023-6717?
When was CVE-2023-6717 disclosed?
Is CVE-2023-6717 actively exploited?
What is the CVSS score of CVE-2023-6717?
How do I remediate CVE-2023-6717?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-6717
Is Your Infrastructure Affected by CVE-2023-6717?
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