| Package | Affected versions | Patched versions |
|---|---|---|
| org.keycloak:keycloak-parent | < 3.4.0 | 3.4.0 |
| single sign on | = 7.0= 7.1 |
It was found that Keycloak would accept a HOST header URL in the admin console and use it to determine web resource locations. An attacker could use this flaw against an authenticated user to attain reflected XSS via a malicious server.
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