{"id":"GHSA-6xmx-85x3-4cv2","summary":"Stored XSS via SVG File Upload","details":"#### Impact\nA 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.\n\n#### Workaround\nImplement the server side file validation\nhttps://docs.umbraco.com/umbraco-cms/reference/security/serverside-file-validation\n\nor \n\nServe all media from an different host (e.g cdn) that where umbraco is hosted","aliases":["CVE-2023-49279"],"modified":"2026-09-10T03:50:02.342810432Z","published":"2023-12-13T13:30:53Z","database_specific":{"nvd_published_at":"2023-12-12T20:15:08Z","cwe_ids":["CWE-79"],"severity":"LOW","github_reviewed":true,"github_reviewed_at":"2023-12-13T13:30:53Z"},"references":[{"type":"WEB","url":"https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-6xmx-85x3-4cv2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-49279"},{"type":"WEB","url":"https://docs.umbraco.com/umbraco-cms/reference/security/serverside-file-validation"},{"type":"PACKAGE","url":"https://github.com/umbraco/Umbraco-CMS"}],"affected":[{"package":{"name":"Umbraco.CMS","ecosystem":"NuGet","purl":"pkg:nuget/Umbraco.CMS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.0.0"},{"fixed":"7.15.11"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/12/GHSA-6xmx-85x3-4cv2/GHSA-6xmx-85x3-4cv2.json"}},{"package":{"name":"Umbraco.CMS","ecosystem":"NuGet","purl":"pkg:nuget/Umbraco.CMS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0.0"},{"fixed":"8.18.9"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/12/GHSA-6xmx-85x3-4cv2/GHSA-6xmx-85x3-4cv2.json"}},{"package":{"name":"Umbraco.CMS","ecosystem":"NuGet","purl":"pkg:nuget/Umbraco.CMS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.0.0"},{"fixed":"10.7.0"}]}],"versions":["10.0.0","10.0.0-rc1","10.0.0-rc2","10.0.0-rc3","10.0.0-rc4","10.0.0-rc5","10.0.1","10.1.0","10.1.0-rc","10.1.0-rc2","10.1.1","10.2.0","10.2.0-rc","10.2.1","10.3.0","10.3.0-rc","10.3.1","10.3.2","10.4.0","10.4.0-rc","10.4.1","10.4.2","10.5.0","10.5.0-rc","10.5.1","10.6.0","10.6.0-rc","10.6.1","10.7.0-rc","9.0.0","9.0.1","9.1.0","9.1.0-rc","9.1.1","9.1.2","9.2.0","9.2.0-rc","9.3.0","9.3.0-rc","9.3.1","9.4.0","9.4.0-rc","9.4.1","9.4.2","9.4.3","9.5.0","9.5.0-rc","9.5.0-rc2","9.5.0-rc3","9.5.1","9.5.2","9.5.3","9.5.4"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/12/GHSA-6xmx-85x3-4cv2/GHSA-6xmx-85x3-4cv2.json"}},{"package":{"name":"Umbraco.CMS","ecosystem":"NuGet","purl":"pkg:nuget/Umbraco.CMS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11.0.0"},{"fixed":"11.5.0"}]}],"versions":["11.0.0","11.1.0","11.1.0-rc","11.2.0","11.2.0-rc","11.2.1","11.2.2","11.3.0","11.3.0-rc","11.3.1","11.4.0","11.4.0-rc","11.4.1","11.4.2","11.5.0-rc"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/12/GHSA-6xmx-85x3-4cv2/GHSA-6xmx-85x3-4cv2.json"}},{"package":{"name":"Umbraco.CMS","ecosystem":"NuGet","purl":"pkg:nuget/Umbraco.CMS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"12.0.0"},{"fixed":"12.2.0"}]}],"versions":["12.0.0","12.0.1","12.1.0","12.1.0-rc","12.1.1","12.1.2","12.2.0-rc"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/12/GHSA-6xmx-85x3-4cv2/GHSA-6xmx-85x3-4cv2.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:N"}]}