CVE DATABASE / CVE-2025-53690

CVE-2025-53690

Sitecore Multiple Products Deserialization of Untrusted Data Vulnerability

⚠ CISA KEV — ACTIVELY EXPLOITED

On the CISA KEV catalog

Confirmed exploited in the wild. Added 2025-09-04. Federal remediation due 2025-09-25.
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.

Summary

Sitecore Experience Manager (XM), Experience Platform (XP), Experience Commerce (XC), and Managed Cloud contain a deserialization of untrusted data vulnerability involving the use of default machine keys. This flaw allows attackers to exploit exposed ASP.NET machine keys to achieve remote code execution.

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Data: NIST NVD + CISA KEV. Always verify against the vendor advisory before acting.