CVE-2019-9874

9.8 CRITICAL CISA KEV - Actively Exploited
Published: May 31, 2019 Modified: November 07, 2025
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://dev.sitecore.net/Downloads.aspx
Source: cve@mitre.org
Product Vendor Advisory
https://www.synacktiv.com/blog.html
Source: cve@mitre.org
Third Party Advisory
https://www.synacktiv.com/ressources/advisories/Sitecore_CSRF_deserialize_RCE.pdf
Source: cve@mitre.org
Exploit Patch Third Party Advisory
https://dev.sitecore.net/Downloads.aspx
Source: af854a3a-2127-422b-91ae-364da2661108
Product Vendor Advisory
https://www.synacktiv.com/blog.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.synacktiv.com/ressources/advisories/Sitecore_CSRF_deserialize_RCE.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Patch Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-9874
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

7 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
75.4%
99th percentile
Exploitation Status
Actively Exploited
Remediation due: 2025-04-16

Weaknesses (CWE)

CWE-502 CWE-502

Affected Vendors

sitecore

Related CVEs

CVE-2025-52691 10.0
CVE-2025-15168 7.3
CVE-2025-15167 7.3
CVE-2025-15166 7.3
CVE-2025-15165 7.3