CVE-2025-53690

high-risk

Published 2025-09-03

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.

Do I need to act?

8.5% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

CISA KEV: actively exploited in the wild

On the Known Exploited Vulnerabilities catalog — federal agencies must patch

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.0/10 Critical

NETWORK / HIGH complexity

Affected Products (4)

Experience Commerce

Experience Manager

Experience Platform

Managed Cloud

Affected Vendors

Sitecore

References (3)

Exploit https://cloud.google.com/blog/topics/threat-intelligence/viewstate-deserializati...

Vendor Advisory https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1003865

US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-...

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high-risk

Severity 26/34 · High

Exploitability 17/34 · Moderate

Exposure 10/34 · Low