CISA Known Exploited Vulnerability

This vulnerability is actively exploited in the wild and listed in the CISA Known Exploited Vulnerabilities catalog.

Remediation Deadline: Apr 16, 2025

CVE-2019-9874

High

EPSS 79.9%CISA KEV

Sitecore/CMS and Experience Platform (XP)

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.

EPSS — Exploit Probability

79.9%

Higher than 99.1% of all CVEs

Required Action

https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB0334035 ; https://nvd.nist.gov/vuln/detail/CVE-2019-9874

Risk Assessment

HIGH

In CISA KEV

High EPSS

Details

Severity: High
EPSS: 79.9%
CISA KEV: Yes
Ransomware: Unknown
Articles: 0

Timeline

Published

Mar 26, 2025

Added to KEV

Mar 26, 2025

Remediation Due

Apr 16, 2025

Affected Product

Sitecore

CMS and Experience Platform (XP)

View all Sitecore CVEs

External Links

NVD (NIST)CVE Details MITRE CVE