Reflected XSS on clients-registrations endpoint
Priority LOW 38CWE-79Published · Updated
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- —
- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-79.
Summary
A POST based reflected Cross Site Scripting vulnerability on has been identified in Keycloak. When a malicious request is sent to the client registration endpoint, the error message is not properly escaped, allowing an attacker to execute malicious scripts into the user's browser. ### Acknowledgement Keycloak would like to thank Quentin TEXIER (Pentester at Opencyber) for reporting this issue.
Why it matters now
Fix Fixed org.keycloak:keycloak-parent (Maven): 18.0.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | org.keycloak:keycloak-parent (Maven) | 10.0.0 to before 18.0.0 | 18.0.0 | Patch available | GHSA-m98g-63qj-fp8j |
- org.keycloak:keycloak-parent (Maven) Vendor— Affected 10.0.0 to before 18.0.0 Fixed in 18.0.0 Patch available GHSA-m98g-63qj-fp8j
Remediation
- Fix · GHSA-m98g-63qj-fp8j org.keycloak:keycloak-parent (Maven) Fixed in 18.0.0 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-m98g-63qj-fp8j
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences