CVE-2019-9875 — Actively Exploited: CMS and Experience Platform (XP) (Sitecore)
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.
| CVE ID | CVE-2019-9875 |
|---|---|
| Vendor | Sitecore |
| Product | CMS and Experience Platform (XP) |
| Vulnerability name | Sitecore CMS and Experience Platform (XP) Deserialization Vulnerability |
| Date added | 2025-03-26 |
| Remediation due | 2025-04-16 |
| Known ransomware use | Unknown |
| Required 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. |
| 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. |
| Source | CISA Known Exploited Vulnerabilities |
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