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CVE-2025-53691

HighPublished

Sitecore Experience Remote Code Execution through Insecure Deserialization

Published: Sep 3, 2025
Updated: Sep 3, 2025
Assigning CNA: Wiz
Evidence observed: Aug 8, 2026

Primary CVSS

8.8/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

1.5%

Low · next 30 days

Percentile: 73.4%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

CVE-2025-53691Exploit
Remote code execution (RCE) through insecure deserialization
CVE-2025-53694-to-CVE-2025-53691Exploit
From Information Disclosure to RCE in Sitecore Experience Platform (XP)

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