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CVE-2025-53691

Sitecore Experience Platform remote code execution

8.8 HIGHPublic exploitEPSS 1.58%
  1. Published3 Sept 2025

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Sitecore Experience Commerce≥ 9.0 ≤ 10.4
Sitecore Experience Manager≥ 9.0 ≤ 10.4
Sitecore Experience Platform≥ 9.0 < 10.4 · 10.4
Sitecore Managed Cloudall versions

Remediation

Fixed in
Sitecore Experience Platform≥ 10.4

References

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Frequently asked

Is CVE-2025-53691 being actively exploited?

CVE-2025-53691 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.58%.

How severe is CVE-2025-53691?

CVE-2025-53691 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 1.58% probability of exploitation.

Which products are affected by CVE-2025-53691?

Affected products include Sitecore Experience Commerce, Sitecore Experience Manager, Sitecore Experience Platform, Sitecore Managed Cloud.

How do I fix CVE-2025-53691?

Upgrade affected software to a fixed version, for example Sitecore Experience Platform 10.4 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-53691 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.