CVE-2022-4137 (keycloak, single_sign-on)

A reflected cross-site scripting (XSS) vulnerability was found in the 'oob' OAuth endpoint due to incorrect null-byte handling. This issue allows a malicious link to insert an arbitrary URI into a Keycloak error page. This flaw requires a user or administrator to interact with a link in order to be vulnerable. This may compromise user details, allowing it to be changed or collected by an attacker.

compromise cross-site cve endpoint error flaw found handling issue keycloak link malicious malicious link may oauth oob order page scripting uri vulnerability vulnerable xss