CVE-2023-6134

Keycloak: reflected xss via wildcard in oidc redirect_uri

Published Dec 14, 2023 CVSS 3.1 · 4.6 Medium EPSS 1.3% KEV · Not listed
Description
A flaw was found in Keycloak that prevents certain schemes in redirects, but permits them if a wildcard is appended to the token. This issue could allow an attacker to submit a specially crafted request leading to cross-site scripting (XSS) or further attacks. This flaw is the result of an incomplete fix for CVE-2020-10748.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-3189 A flaw was found in Keycloak that prevents certain schemes in redirects, but permits them if a wildcard is appended to the token. This issue could allow an attacker to submit a specially crafted request leading to cross-site scripting (XSS) or further attacks. This flaw is the result of an incomplete fix for CVE-2020-10748.
Github GHSA Github GHSA GHSA-cvg2-7c3j-g36j Keycloak vulnerable to reflected XSS via wildcard in OIDC redirect_uri
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