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CVE-2025-53690— Sitecore Products ViewState Deserialization Vulnerability

Quick assessment

Affected
Sitecore Experience Manager (XM)
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Sitecore Experience Manager（XM）是丹麦Sitecore公司的一个管理软件。 Sitecore Experience Manager 9.0及之前版本和Sitecore Experience Platform 9.0及之前版本存在安全漏洞，该漏洞源于反序列化不受信任数据，可能导致代码注入。

CVSS 9.0 · Critical KEV EPSS 51.09% · P99

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-53690

Vulnerability Information
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Vulnerability Title
Sitecore Products ViewState Deserialization Vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
Sitecore Experience Manager 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sitecore Experience Manager（XM）是丹麦Sitecore公司的一个管理软件。 Sitecore Experience Manager 9.0及之前版本和Sitecore Experience Platform 9.0及之前版本存在安全漏洞，该漏洞源于反序列化不受信任数据，可能导致代码注入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Sitecore Experience Manager (XM) 0 ~ 9.0 -
Sitecore Experience Platform (XP) 0 ~ 9.0 -

II. Public POCs for CVE-2025-53690

# POC Description Source Link Shenlong Link
1 Detection for CVE-2025-53690 https://github.com/rxerium/CVE-2025-53690 POC Details
2 CVE-2025-53690 https://github.com/B1ack4sh/Blackash-CVE-2025-53690 POC Details
3 This is CVE-2025-53690 Analysis Documents. https://github.com/m0d0ri205/CVE-2025-53690-Analysis POC Details
4 CVE-2025-53690 POC https://github.com/ErikLearningSec/CVE-2025-53690-POC POC Details
5 CVE-2025-53690 https://github.com/Ashwesker/Blackash-CVE-2025-53690 POC Details
6 CVE-2025-53690 https://github.com/Ashwesker/Ashwesker-CVE-2025-53690 POC Details
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III. Intelligence Information for CVE-2025-53690

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Same Patch Batch · Sitecore · 2025-09-03 · 4 CVEs total

CVE-2025-53693 9.8 CRITICAL HTML Cache Poisoning through Unsafe Reflections
CVE-2025-53691 8.8 HIGH Sitecore Experience Remote Code Execution through Insecure Deserialization
CVE-2025-53694 7.5 HIGH Information Disclosure in ItemServices API

IV. Related Vulnerabilities

Same product: Experience Manager (XM)
Same vendor: Sitecore
Same weakness: CWE-502

V. Comments for CVE-2025-53690

Anonymous User
2026-01-15 06:08:51

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