Is CVE-2019-9874 actively exploited?

CVE-2019-9874 has no public evidence of in-the-wild exploitation as of 2025-11-07.

What is the CVSS score for CVE-2019-9874?

CVE-2019-9874 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2019-9874?

Patch guidance is available from sitecore security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2019-9874.

Fix CVE-2019-9874 - CRITICAL sitecore cms

Q: Which products are affected by CVE-2019-9874?

2 products: sitecore cms, sitecore experience platform.

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-502 · Insecure Deserialization CWE-502 · Insecure Deserialization

Metadata

Primary Vendor: SITECORE
Published: 5/31/2019
Last Modified: 11/7/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2019-9874

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary