{"id":"GHSA-wrp2-6v6j-hfmg","aliases":["CVE-2023-44763"],"title":"ConcreteCMS vulnerable to Stored Cross-site Scripting","titleSource":"OSV","descriptionSource":"OSV","declaredSeverity":"MODERATE","description":"Concrete CMS v9.2.1 is affected by Arbitrary File Upload vulnerability via the Thumbnail file upload, which allows Cross-Site Scripting (XSS).","severity":"medium","score":5.4,"published":"2023-10-10T12:32:12.000Z","modified":"2026-09-10T03:49:24.685Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"concrete5/concrete5","sources":[{"name":"OSV · GHSA-wrp2-6v6j-hfmg","url":"https://osv.dev/vulnerability/GHSA-wrp2-6v6j-hfmg"}],"ranges":[{"events":[{"introduced":"0"},{"last_affected":"9.2.1"}],"type":"ECOSYSTEM"}],"versions":["8.0","8.0.1","8.0.2","8.0.3","8.1.0","8.2.0","8.2.0RC2","8.2.1","8.3.0","8.3.1","8.3.2","8.4.0","8.4.0RC3","8.4.0RC4","8.4.1","8.4.2","8.4.3","8.4.4","8.4.5","8.5.0","8.5.0RC1","8.5.0RC2","8.5.1","8.5.10","8.5.11","8.5.12","8.5.13","8.5.14","8.5.15","8.5.16","8.5.17","8.5.18","8.5.19","8.5.2","8.5.20","8.5.21","8.5.3","8.5.4","8.5.5","8.5.6","8.5.6RC1","8.5.7","8.5.8","8.5.9","9.0.0","9.0.0RC1","9.0.0RC3","9.0.0RC4","9.0.1","9.0.2","9.1.0","9.1.1","9.1.2","9.1.3","9.2.0","9.2.0RC2","9.2.1"],"fixed":[]}],"sourceAffected":[],"references":["https://nvd.nist.gov/vuln/detail/CVE-2023-44763","https://github.com/concretecms/concretecms","https://github.com/sromanhu/ConcreteCMS-Arbitrary-file-upload-Thumbnail","https://web.archive.org/web/20231026034159/https://documentation.concretecms.org/user-guide/editors-reference/dashboard/system-and-maintenance/files/allowed-file-types","https://www.concretecms.org/about/project-news/security/security-advisory-2023-10-25-concrete-cms-rejects-cve-2023-44763"],"sources":[{"name":"OSV","id":"GHSA-wrp2-6v6j-hfmg","modified":"2026-09-10T03:49:24.685227521Z","url":"https://osv.dev/vulnerability/GHSA-wrp2-6v6j-hfmg"}],"assessments":[{"source":"OSV","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","score":5.4}],"products":[],"remediation":[],"kev":{"status":"not-listed","checkedAt":"2026-10-29T01:35:32.302Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}