Is CVE-2019-9874 actively exploited?

Yes. CVE-2019-9874 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2019-9874 be exploited remotely?

The attack vector of CVE-2019-9874 has not been classified yet.

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

CVE-2019-9874 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2019-9874

HIGHCISA KEVIN THE WILD

CVE-2019-9874

Published: March 26, 2025

EPSS:78.93%probability of exploitation in 30 daysPercentile:99.0th

Official Description

Sitecore CMS and Experience Platform (XP) contain a deserialization vulnerability in the Sitecore.Security.AntiCSRF module that allows an unauthenticated attacker to execute arbitrary code by sending a serialized .NET object in the HTTP POST parameter __CSRFTOKEN.

NVD Source

CISA KEV Advisory

Sitecore CMS and Experience Platform (XP) Deserialization Vulnerability

Added to KEV: 2025-03-26Federal patch deadline: 2025-04-16

Required Action (CISA)

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

Risk Analysis

Sitecore CMS and Experience Platform (XP) are vulnerable to a deserialization flaw in the Sitecore.Security.AntiCSRF module. This allows an unauthenticated attacker to execute arbitrary code by sending a crafted .NET object. The high EPSS score of 0.78933 indicates a high likelihood of exploitation, and its inclusion in CISA's KEV confirms active exploitation.

This vulnerability is actively exploited in the wild, as confirmed by its presence in CISA's KEV. It is remotely exploitable by an unauthenticated attacker.

Recommended Action

Apply the latest security patches and updates for Sitecore CMS and Experience Platform. Implement robust input validation and consider disabling deserialization of untrusted data where possible.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2019-9874 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2019-9874 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.