CVE-2025-53690
CRITICAL
2025-09-03
9947ef80-c5d5-474a-bbab-97341a59000e
9.0
CVSS 3.1
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CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Lifecycle Timeline
4
Analysis Generated
Mar 28, 2026 - 19:10 vuln.today
Added to CISA KEV
Oct 30, 2025 - 20:39 cisa
CISA KEV
PoC Detected
Oct 30, 2025 - 20:39 vuln.today
Public exploit code
CVE Published
Sep 03, 2025 - 20:15 nvd
CRITICAL 9.0
Description
Deserialization of Untrusted Data vulnerability in Sitecore Experience Manager (XM), Sitecore Experience Platform (XP) allows Code Injection.This issue affects Experience Manager (XM): through 9.0; Experience Platform (XP): through 9.0.
Analysis
Sitecore Experience Manager/Platform through version 9.0 contains a deserialization vulnerability enabling code injection through untrusted data processing.
Technical Context
The CWE-502 deserialization processes untrusted data that can contain malicious serialized .NET objects for code execution.
Affected Products
['Sitecore Experience Manager through 9.0', 'Sitecore Experience Platform through 9.0']
Remediation
Apply Sitecore security patches. Implement .NET serialization filtering.
Priority Score
124
Low
Medium
High
Critical
KEV: +50
EPSS: +9.3
CVSS: +45
POC: +20
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External POC / Exploit Code
Leaving vuln.today
Destination URL
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