{"id":"CVE-2019-9875","aliases":[],"url":"https://o3.security/vulnerability/CVE-2019-9875","summary":"Deserialization of Untrusted Data in the anti CSRF module in Sitecore through 9.1 allows an authenticated attacker to execute arbitrary code by sending a serialized .NET object in an…","details":"Deserialization of Untrusted Data in the anti CSRF module in Sitecore through 9.1 allows an authenticated attacker to execute arbitrary code by sending a serialized .NET object in an HTTP POST parameter.","published":"2019-05-31T20:34:46.000Z","modified":"2025-10-21T23:45:35.858Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.14042,"percentile":0.96366,"asOf":"2026-09-16"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://dev.sitecore.net/Downloads.aspx"},{"type":"WEB","url":"https://www.synacktiv.com/blog.html"},{"type":"WEB","url":"https://www.synacktiv.com/ressources/advisories/Sitecore_CSRF_deserialize_RCE.pdf"},{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-9875"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2025-10-21T23:45:35.858Z"}}