CVE-2019-9874

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.

Reserved 2019-03-19 | Published 2019-05-31 | Updated 2025-03-26 | Assigner mitre

CISA Known Exploited Vulnerability

Date added 2025-03-26 | Due date 2025-04-16

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

References

dev.sitecore.net/Downloads.aspx

www.synacktiv.com/blog.html

www.synacktiv.com/...ories/Sitecore_CSRF_deserialize_RCE.pdf

cve.org (CVE-2019-9874)

nvd.nist.gov (CVE-2019-9874)

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