CRITICAL CISA KEV

CVE-2019-9874

CVSS v3

9.8

CRITICAL

EPSS Score

78.9%

exploit probability

CISA KEV

Yes

known exploited

Exploitation

—

SSVC status

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.

CISA Known Exploited Vulnerability

Date Added
3/26/2025
Patch Due Date
4/16/2025
Ransomware Use
Unknown

Technical details

Published
5/31/2019

Frequently asked questions

What is CVE-2019-9874?

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.

Is CVE-2019-9874 actively exploited?

Yes. CVE-2019-9874 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 4/16/2025.

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

CVE-2019-9874 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2019-9874 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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