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Servers and applications

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.

Severity
High 8.8
Published
3 Sept 2025
Last changed
18 Oct 2026
Added to UpHeron
1 Nov 2026
Fixed in
10.4
Sources
NVD

Affected software

SoftwareAffected versions
Sitecore Experience PlatformServers and applications · cpe:a:sitecore:experience_manager
  • From 9.0 up to 10.4
Sitecore Experience PlatformServers and applications · cpe:a:sitecore:experience_platform
  • From 9.0 before 10.4
  • Version 10.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-53691
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-53691