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    CVE-2019-9875

    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:May 31, 2019
    Last Modified:Nov 7, 2025
    EPS:May 31, 2019
    EPSS Score:0.14098
    CVSS Score:8.8

    CISA Notification

    Description

    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.

    Required Action:

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

    Notes:

    No extra notes provided.

    Due Date
    Apr 16, 2025
    513 days ago
    Alert Date
    Mar 26, 2025
    534 days ago

    Affected Products

    Vendor
    Sitecore
    Product
    Cms

    Exploits

    https://www.synacktiv.com/ressources/advisories/Sitecore_CSRF_deserialize_RCE.pdfhttps://www.synacktiv.com/ressources/advisories/Sitecore_CSRF_deserialize_RCE.pdf

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-586 Object Injection

    Related CVEs

    CVE-2022-4979 (CVSS 5.1) — A cross-site scripting (XSS) vulnerability exists in Sitecore Experience Platform (XP) 7.5 - 10.2 and CMS 7.2 …
    CVE-2015-10142 (CVSS 6.9) — Sitecore Experience Platform (XP) prior to 8.0 Initial Release (rev. 141212) and Content Management System (CM…
    CVE-2019-11198 (CVSS 6.1) — Multiple cross-site scripting (XSS) vulnerabilities in Sitecore CMS 9.0.1 and earlier allow remote attackers t…
    CVE-2019-9874 (CVSS 9.8) — Deserialization of Untrusted Data in the Sitecore.Security.AntiCSRF (aka anti CSRF) module in Sitecore CMS 7.0…
    CVE-2017-11440 (CVSS 4.9) — In Sitecore 8.2, there is absolute path traversal via the shell/Applications/Layouts/IDE.aspx fi parameter and…
    CVE-2017-11439 (CVSS 5.4) — In Sitecore 8.2, there is reflected XSS in the shell/Applications/Tools/Run Program parameter.…
    CVE-2014-100004 (CVSS 4.3) — Cross-site scripting (XSS) vulnerability in Sitecore CMS before 7.0 Update-4 (rev. 140120) allows remote attac…
    CVE-2009-2163 (CVSS 4.3) — Cross-site scripting (XSS) vulnerability in login/default.aspx in Sitecore CMS before 6.0.2 Update-1 090507 al…
    CVE-2009-1055 (CVSS 4) — Unspecified vulnerability in the web service in Sitecore CMS 5.3.1 rev. 071114 allows remote authenticated use…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High