{"id":"CVE-2023-49279","state":"PUBLISHED","title":"Umbraco CMS vulnerable to stored XSS via SVG File Upload","description":"Umbraco is an ASP.NET content management system (CMS). Starting in version 7.0.0 and prior to versions 7.15.11, 8.18.9, 10.7.0, 11.5.0, and 12.2.0, a user with access to the backoffice can upload SVG files that include scripts. If the user can trick another user to load the media directly in a browser, the scripts can be executed. Versions 7.15.11, 8.18.9, 10.7.0, 11.5.0, and 12.2.0 contain a patch for this issue. Some workarounds are available. Implement the server side file validation or serve all media from an different host (e.g cdn) than where Umbraco is hosted.","publishedAt":"2023-12-12T19:35:05.931Z","updatedAt":"2024-08-28T14:43:18.346Z","severity":{"score":3.7,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["umbraco Umbraco-CMS"],"affected":[{"vendor":"umbraco","product":"Umbraco-CMS","versions":[{"version":">= 7.0.0, < 7.15.11","status":"affected"},{"version":">= 8.0.0, < 8.18.9","status":"affected"},{"version":">= 9.0.0-rc001, < 10.7.0","status":"affected"},{"version":">= 11.0.0-rc1, < 11.5.0","status":"affected"},{"version":">= 12.0.0-rc1, < 12.2.0","status":"affected"}]}],"references":["https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-6xmx-85x3-4cv2","https://docs.umbraco.com/umbraco-cms/reference/security/serverside-file-validation"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:06:24.729Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/49xxx/CVE-2023-49279.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-49279","state":"PUBLISHED","datePublished":"2023-12-12T19:35:05.931Z","dateUpdated":"2024-08-28T14:43:18.346Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2023-11-24T16:45:24.311Z"},"containers":{"cna":{"title":"Umbraco CMS vulnerable to stored XSS via SVG File Upload","descriptions":[{"lang":"en","value":"Umbraco is an ASP.NET content management system (CMS). 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