CVE-2019-9875 - Sitecore CMS and Experience Platform (XP) Deserialization Vulnerability

Project:Sitecore

Product:CMS and Experience Platform (XP)

Date Added:2025-03-26Due Date:2025-04-16

Vulnerability Name

Sitecore CMS and Experience Platform (XP) Deserialization Vulnerability

Description

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

Known To Be Used in Ransomware Campaigns?

Unknown

Action

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