A flaw was found in Keycloak. Keycloak’s account console and other pages accept arbitrary text in the error_description query parameter. This text is directly rendered in error pages without validation or sanitization. While HTML encoding prevents XSS, an attacker can craft URLs with misleading messages (e.g., fake support phone numbers or URLs), which are displayed within the trusted Keycloak UI. This creates a phishing vector, potentially tricking users into contacting malicious actors.
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Affected Vendors & Products
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History
Fri, 05 Sep 2025 21:15:00 +0000
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ssvc
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Fri, 05 Sep 2025 20:15:00 +0000
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Description | A flaw was found in Keycloak. Keycloak’s account console and other pages accept arbitrary text in the error_description query parameter. This text is directly rendered in error pages without validation or sanitization. While HTML encoding prevents XSS, an attacker can craft URLs with misleading messages (e.g., fake support phone numbers or URLs), which are displayed within the trusted Keycloak UI. This creates a phishing vector, potentially tricking users into contacting malicious actors. | |
Title | Keycloak: keycloak error_description injection on error pages | |
First Time appeared |
Redhat
Redhat build Keycloak |
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Weaknesses | CWE-79 | |
CPEs | cpe:/a:redhat:build_keycloak: | |
Vendors & Products |
Redhat
Redhat build Keycloak |
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References |
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Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2025-09-05T20:15:19.741Z
Reserved: 2025-09-05T18:19:49.483Z
Link: CVE-2025-10044

Updated: 2025-09-05T20:15:15.449Z

Status : Received
Published: 2025-09-05T20:15:34.430
Modified: 2025-09-05T20:15:34.430
Link: CVE-2025-10044

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