{
    "id": "CVE-2019-9874",
    "published": "2019-05-31 21:29:06",
    "last_modified": "2026-06-17 02:44:46",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-502",
    "description": "Deserialization of Untrusted Data in the Sitecore.Security.AntiCSRF (aka anti CSRF) module in Sitecore CMS 7.0 to 7.2 and Sitecore XP 7.5 to 8.2 allows an unauthenticated attacker to execute arbitrary code by sending a serialized .NET object in the HTTP POST parameter __CSRFTOKEN.",
    "epss_score": "0.83736",
    "epss_percentile": "0.99683",
    "kev": 1,
    "kev_due": "2025-04-16",
    "has_exploit": 0,
    "updated_at": "2026-09-26 18:24:20",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2025-04-16."
    },
    "products": [
        {
            "vendor": "sitecore",
            "product": "cms"
        },
        {
            "vendor": "sitecore",
            "product": "experience_platform"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2019-9874",
        "date_added": "2025-03-26",
        "due_date": "2025-04-16",
        "vendor": "Sitecore",
        "product": "CMS and Experience Platform (XP)",
        "name": "Sitecore CMS and Experience Platform (XP) Deserialization Vulnerability",
        "ransomware": 0
    },
    "exploits": [],
    "refs_list": [
        "https://dev.sitecore.net/Downloads.aspx",
        "https://www.synacktiv.com/blog.html",
        "https://www.synacktiv.com/ressources/advisories/Sitecore_CSRF_deserialize_RCE.pdf",
        "https://dev.sitecore.net/Downloads.aspx",
        "https://www.synacktiv.com/blog.html",
        "https://www.synacktiv.com/ressources/advisories/Sitecore_CSRF_deserialize_RCE.pdf",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-9874"
    ]
}