Cross-site scripting in Keycloak - CVE-2023-6717

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Main Vulnerability Database Vulnerabilities #VU88795

Cross-site scripting in Keycloak - CVE-2023-6717

Published: April 17, 2024


Vulnerability identifier: #VU88795
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2023-6717
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the assertion consumer service URL in SAML POST-binding flow. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


Affected software

Keycloak
Red Hat OpenShift Serverless
AMQ Broker

How to mitigate CVE-2023-6717

Install updates from vendor's website.

Keycloak - addressed in versions 22.0.10, 24.0.3
Red Hat OpenShift Serverless - update to 1.33.0
AMQ Broker - update to 7.12.0

External References

Related Security Bulletins