CVE-2025-53691

high-risk
Published 2025-09-03

Deserialization of Untrusted Data vulnerability in Sitecore Experience Manager (XM), Sitecore Experience Platform (XP) allows Remote Code Execution (RCE).This issue affects Experience Manager (XM): from 9.0 through 9.3, from 10.0 through 10.4; Experience Platform (XP): from 9.0 through 9.3, from 10.0 through 10.4.

Do I need to act?

~
5.0% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (5)

Affected Vendors

Sitecore

References (2)

Exploit https://labs.watchtowr.com/cache-me-if-you-can-sitecore-experience-platform-cach...
Vendor Advisory https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1003667
50
/ 100
high-risk
Severity 30/34 · Critical
Exploitability 8/34 · Low
Exposure 12/34 · Low