REDHAT-BUG-2253952
First published: Mon Dec 11 2023(Updated: )
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. Thus, Keycloak is vulnerable to Cross-Site Scripting (XXS) by registering a JavaScript URI as Assertion Consumer Service POST Binding URL.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat Keycloak |
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Reference Links
Frequently Asked Questions
What is the severity of REDHAT-BUG-2253952?
The severity of REDHAT-BUG-2253952 is critical due to the potential for arbitrary JavaScript execution.
How do I fix REDHAT-BUG-2253952?
To fix REDHAT-BUG-2253952, update Keycloak to the latest version that addresses this vulnerability.
What types of systems are affected by REDHAT-BUG-2253952?
Systems running affected versions of Keycloak are vulnerable to REDHAT-BUG-2253952.
What is the risk of exploiting REDHAT-BUG-2253952?
Exploiting REDHAT-BUG-2253952 can lead to XSS attacks by executing malicious scripts in the context of user sessions.
Is REDHAT-BUG-2253952 a known vulnerability?
Yes, REDHAT-BUG-2253952 is a known vulnerability documented in the Red Hat bug tracking system.
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