{"id":"CVE-2024-35218","summary":"Umbraco CMS Vulnerable to Stored XSS on Content Page Through Markdown Editor Preview Pane","details":"Umbraco CMS is an ASP.NET CMS used by more than 730.000 websites. Stored Cross-site scripting (XSS) enable attackers that have access to backoffice to bring malicious content into a website or application. This vulnerability has been patched in version(s) 8.18.13, 10.8.4, 12.3.7, 13.1.1 by implementing IHtmlSanitizer.\n\n\n\n\n","aliases":["GHSA-gvpc-3pj6-4m9w"],"modified":"2026-04-10T05:13:08.218489Z","published":"2024-05-21T13:42:27.260Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-79"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/35xxx/CVE-2024-35218.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/35xxx/CVE-2024-35218.json"},{"type":"ADVISORY","url":"https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-gvpc-3pj6-4m9w"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-35218"},{"type":"FIX","url":"https://github.com/umbraco/Umbraco-CMS/commit/1b712fe6ec52aa4e71b3acf63e393c8e6ab85385"},{"type":"FIX","url":"https://github.com/umbraco/Umbraco-CMS/commit/a2684069b1e9976444f60b4b37a80be05b87f6b6"},{"type":"FIX","url":"https://github.com/umbraco/Umbraco-CMS/commit/cbf9f9bcd199d7ca0412be3071d275556f10b7ba"},{"type":"FIX","url":"https://github.com/umbraco/Umbraco-CMS/commit/d090176272d07500dac0daee7c598aa8bb321050"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/umbraco/umbraco-cms","events":[{"introduced":"b8db430615d76521a4394a23f9928dc7c12f87bd"},{"fixed":"9700dc72668cac59b84d97349582be45bb471059"}],"database_specific":{"versions":[{"introduced":"8.0.0"},{"fixed":"8.18.13"}]}},{"type":"GIT","repo":"https://github.com/umbraco/umbraco-cms","events":[{"introduced":"e3f4b86f1c28e0ec30a1ad2a079e308af4cbfbf7"},{"fixed":"cbf9f9bcd199d7ca0412be3071d275556f10b7ba"}],"database_specific":{"versions":[{"introduced":"10.0.0"},{"fixed":"10.8.4"}]}},{"type":"GIT","repo":"https://github.com/umbraco/umbraco-cms","events":[{"introduced":"ba724ed97d77b9951a22fe693f9dd3bdd000047c"},{"fixed":"1b712fe6ec52aa4e71b3acf63e393c8e6ab85385"}],"database_specific":{"versions":[{"introduced":"12.0.0"},{"fixed":"12.3.7"}]}},{"type":"GIT","repo":"https://github.com/umbraco/umbraco-cms","events":[{"introduced":"9dfb3005bcd68f5399ee13263bfc462c69b39a66"},{"fixed":"d090176272d07500dac0daee7c598aa8bb321050"}],"database_specific":{"versions":[{"introduced":"13.0.0"},{"fixed":"13.1.1"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-35218.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N"}]}