{"id":"CVE-2018-8899","details":"IdentityServer IdentityServer4 1.x before 1.5.3 and 2.x before 2.1.3 does not encode the redirect URI on the authorization response page, which might lead to XSS in some configurations.","modified":"2026-05-14T12:01:32.069301681Z","published":"2018-03-22T05:29:00.287Z","database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/IdentityServer/IdentityServer4/releases/tag/1.5.3"},{"type":"ADVISORY","url":"https://github.com/IdentityServer/IdentityServer4/releases/tag/2.1.3"},{"type":"REPORT","url":"https://github.com/IdentityServer/IdentityServer4/issues/2164"},{"type":"FIX","url":"https://github.com/IdentityServer/IdentityServer4/commit/21d0da227f50ac102de469a13bc5a15d2cc0f895"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/DuendeArchive/IdentityServer4","events":[{"introduced":"62eea365e8835323230c32eff6ec9b7b78cc1be0"},{"last_affected":"b9f179103be2d8708131394527cebc1e9f6b17aa"},{"introduced":"1b88084c06eb6a0368ccec9fed7c9a295f1d508b"},{"last_affected":"becb2206826b1039687b3ec895fad5e1b26ef0c5"}],"database_specific":{"source":"CPE_FIELD","cpe":"cpe:2.3:a:identityserver:identityserver4:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"1.0.0"},{"last_affected":"1.5.2"},{"introduced":"2.0.0"},{"last_affected":"2.1.2"}]}}],"versions":["2.1.2","2.1.1","2.1.0","2.0.6","2.0.5","2.0.4","2.0.3","2.0.2","2.0.1","2.0.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-8899.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}