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Status published
Critical
CVE-2025-53690
Sitecore Products ViewState Deserialization Vulnerability
Vulnerability Description
Deserialization of Untrusted Data vulnerability in Sitecore Experience Manager (XM), Sitecore Experience Platform (XP) allows Code Injection.This issue affects Experience Manager (XM): through 9.0; Experience Platform (XP): through 9.0.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Mandiant Threat Defense
References
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Affected Vendor
Sitecore
View all reports →Affected Software
Experience Manager (XM), Experience Platform (XP)
Vulnerable Versions:
0
Timeline
Official Publish:
September 3rd, 2025
Last Modified:
February 26th, 2026
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H