CVE-2025-53691

Name: CVE-2025-53691
Creator: NVD / NIST
Published: 2025-09-03T13:15:49.297+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.44%

Last modified Jun 17, 2026

CVE-2025-53691 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 1.44% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.44%

69.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Sitecore	Experience Commerce	>= 9.0, <= 10.4
Sitecore	Experience Manager	>= 9.0, <= 10.4
Sitecore	Experience Platform	>= 9.0, < 10.4
Sitecore	Experience Platform	10.4
Sitecore	Managed Cloud	All versions

References

https://labs.watchtowr.com/cache-me-if-you-can-sitecore-experience-platform-cache-poisoning-to-rce/Exploit, Third Party Advisory
https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1003667Vendor Advisory

Timeline

Published: Sep 3, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-53691?

How severe is CVE-2025-53691?

CVE-2025-53691 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.44% probability of exploitation in the next 30 days.

How do I fix CVE-2025-53691?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-53691?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST