{"id":"CVE-2021-41464","details":"Cross-site scripting (XSS) vulnerability in concrete/elements/collection_add.php in concrete5-legacy 5.6.4.0 and below allows remote attackers to inject arbitrary web script or HTML via the rel parameter.","modified":"2026-07-09T05:45:12.991965Z","published":"2021-10-01T16:15:08.057Z","references":[{"type":"ADVISORY","url":"https://github.com/concrete5/concrete5-legacy"},{"type":"REPORT","url":"https://github.com/concrete5/concrete5-legacy/issues/2006"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/concretecms/concrete5-legacy","events":[{"introduced":"0"},{"last_affected":"150aa366297a75f76ea372484e7d3ab634021127"}],"database_specific":{"source":"CPE_RANGE","extracted_events":[{"introduced":"0"},{"last_affected":"5.6.4.0"}],"cpe":"cpe:2.3:a:concrete5-legacy_project:concrete5-legacy:*:*:*:*:*:*:*:*"}}],"versions":["5.6.4.0","5.6.3.5","5.6.3.4","5.6.3.3","5.6.3.2","5.6.3.1","5.6.3","5.6.2.1","5.6.2","5.6.1.2","5.6.1.1","5.6.1","5.6.0.1","5.6.0.2","5.6.0","5.5.2.1","5.5.2","5.5.1","5.5.0","5.4.2.2","5.4.2.1","5.4.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-41464.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}