{"id":"CVE-2020-10776","aliases":["GHSA-484q-784p-8m5h"],"url":"https://o3.security/vulnerability/CVE-2020-10776","summary":"Cross-site Scripting in keycloak","details":"A flaw was found in Keycloak before version 12.0.0, where it is possible to add unsafe schemes for the redirect_uri parameter. This flaw allows an attacker to perform a Cross-site scripting attack.","published":"2020-11-17T02:15:11.910Z","modified":"2026-08-07T14:53:13.654161Z","cvss":{"score":4.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.keycloak:keycloak-server-spi-private","fixedVersion":"12.0.0"},{"ecosystem":"Maven","name":"org.keycloak:keycloak-services","fixedVersion":"12.0.0"}],"fix":null,"references":[{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1847428"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T14:53:13.654161Z"}}