CVE-2025-53691

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.

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

1.6% chance of exploitation in the next 30 days; higher than 76% of CVEs (scores of 2026-10-25)

CWE

CWE-502

Published

2025-09-03

Modified

2026-10-18

Record from

the NVD, synced 2026-10-19

Affected

• sitecore:experience_commerce
• sitecore:experience_manager
• sitecore:experience_platform
• sitecore:managed_cloud

References

• https://labs.watchtowr.com/cache-me-if-you-can-sitecore-experience-platform-cache-poisoning-to-rce/
• https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1003667

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