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Security Advisories: GSA_kwCzR0hTQS04cm1tLWdtMjgtcGo4cc4AA7I3

Keycloak Cross-site Scripting (XSS) via assertion consumer service URL in SAML POST-binding flow

Keycloak allows arbitrary URLs as SAML Assertion Consumer Service POST Binding URL (ACS), including JavaScript URIs (javascript:).

Allowing JavaScript URIs in combination with HTML forms leads to JavaScript evaluation in the context of the embedding origin on form submission.

Acknowledgements:

Special thanks to Lauritz Holtmann for reporting this issue and helping us improve our project.

Permalink: https://github.com/advisories/GHSA-8rmm-gm28-pj8q
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS04cm1tLWdtMjgtcGo4cc4AA7I3
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: about 1 month ago
Updated: 5 days ago


CVSS Score: 6.0
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:L

Identifiers: GHSA-8rmm-gm28-pj8q, CVE-2023-6717
References: Repository: https://github.com/keycloak/keycloak
Blast Radius: 16.5

Affected Packages

maven:org.keycloak:keycloak-services
Dependent packages: 90
Dependent repositories: 561
Downloads:
Affected Version Ranges: >= 23.0.0, < 24.0.3, < 22.0.10
Fixed in: 24.0.3, 22.0.10
All affected versions: 5.0.0, 6.0.0, 6.0.1, 7.0.0, 7.0.1, 8.0.0, 8.0.1, 8.0.2, 9.0.0, 9.0.2, 9.0.3, 10.0.0, 10.0.1, 10.0.2, 11.0.0, 11.0.1, 11.0.2, 11.0.3, 12.0.0, 12.0.1, 12.0.2, 12.0.3, 12.0.4, 13.0.0, 13.0.1, 14.0.0, 15.0.0, 15.0.1, 15.0.2, 15.1.0, 15.1.1, 16.0.0, 16.1.0, 16.1.1, 17.0.0, 17.0.1, 18.0.0, 18.0.1, 18.0.2, 19.0.0, 19.0.1, 19.0.2, 19.0.3, 20.0.0, 20.0.1, 20.0.2, 20.0.3, 20.0.4, 20.0.5, 21.0.0, 21.0.1, 21.0.2, 21.1.0, 21.1.1, 21.1.2, 22.0.0, 22.0.1, 22.0.2, 22.0.3, 22.0.4, 22.0.5, 23.0.0, 23.0.1, 23.0.2, 23.0.3, 23.0.4, 23.0.5, 23.0.6, 23.0.7, 24.0.0, 24.0.1, 24.0.2
All unaffected versions: 24.0.3, 24.0.4