CVE-2025-53690

Sitecore Products ViewState Deserialization Vulnerability

State: Published
Severity: 9.0 Critical
Published: Sep 3, 2025
Updated: Feb 26, 2026
Reserved: Jul 8, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	9.0 Critical	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H	Wiz

Weaknesses

CWE-502 Deserialization of Untrusted Data

Affected Products

Product	Versions
Experience Manager (XM)Sitecore	9.0 and earlierAffected
Experience Platform (XP)Sitecore	9.0 and earlierAffected

References

https://cloud.google.com/blog/topics/threat-intelligence/viewstate-deserialization-zero-day-vulnerability
https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1003865
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-53690government-resource

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