{"id":"CVE-2023-28820","details":"Concrete CMS (previously concrete5) before 9.1 is vulnerable to stored XSS in RSS Displayer via the href attribute because the link element input was not sanitized.","aliases":["GHSA-fgxj-g7x3-85cq"],"modified":"2026-04-12T08:15:28.292750Z","published":"2023-04-28T14:15:10.703Z","references":[{"type":"ADVISORY","url":"https://github.com/concretecms/concretecms/releases"},{"type":"ADVISORY","url":"https://www.concretecms.org/about/project-news/security/concrete-cms-security-advisory-2023-04-20"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/concretecms/concretecms","events":[{"introduced":"0"},{"fixed":"f1a0eb94bc70d74c58ec8746a7a940cf8257bf22"}],"database_specific":{"source":"CPE_FIELD","cpe":"cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"9.1.0"}]}}],"versions":["5.7.0","5.7.0.1","5.7.0.3","5.7.0.4","5.7.1","5.7.2","5.7.2.1","5.7.3","5.7.3.1","5.7.4.1","5.7.5.2","5.7.5.5","5.7.5.6","5.7.5.7","8.1.0","8.2.0","8.2.0RC2","8.2.1","8.3.1","8.4.1","8.4.2","8.4.3","8.4.4","8.4.5","8.5.0","8.5.1","8.5.2","8.5.3","8.5.4","8.5.5","9.0.0","9.0.1","9.0.2"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-28820.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}]}