Detections
Analytics
Sitecore XP Insecure Deserialization (SC2025-005)
critical Nessus Plugin ID 261484
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Synopsis
The remote web server contains an application that is affected by an insecure deserialization vulnerability.Description
The version of Sitecore XP running on the remote host is affected by an insecure deserialization vulnerability.Sitecore deployments using the sample key provided with deployment instructions for XP 9.0 or earlier and Active Directory 1.4 are potentially vulnerable to an insecure ViewState deserialization vulnerability that could allow a remote, unauthenticated attacker to perform remote code execution and acquire non-authorized access to information.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
See vendor advisory.See Also
Plugin Details
Severity: Critical
ID: 261484
File Name: sitecore_xp_SC2025-005.nasl
Version: 1.2
Type: remote
Family: CGI abuses
Published: 9/5/2025
Updated: 9/6/2025
Configuration: Enable paranoid mode, Enable thorough checks (optional)
Supported Sensors: Nessus
Enable CGI Scanning: true
Risk Information
VPR
Risk Factor: Critical
Score: 9.9
CVSS v2
Risk Factor: High
Base Score: 7.6
Temporal Score: 6.6
Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2025-53690
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 9.4
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C
CVSS Score Source: CVE-2025-53770
Vulnerability Information
CPE: cpe:/a:sitecore:experience_platform
Required KB Items: Settings/ParanoidReport, installed_sw/sitecore_cms
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 9/2/2025
Vulnerability Publication Date: 9/2/2025
CISA Known Exploited Vulnerability Due Dates: 7/21/2025, 9/25/2025
Exploitable With
Metasploit (Microsoft SharePoint Server ToolPane Unauthenticated Remote Code Execution (aka ToolShell))