Sitecore Experience Manager/Experience Platform up to 10.4 deserialization

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Sitecore Experience Manager and Experience Platform up to 10.4. The impacted element is an unknown function. This manipulation causes deserialization. This vulnerability is tracked as CVE-2025-27218. The attack is possible to be carried out remotely. Moreover, an exploit is present. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability has been found in Sitecore Experience Manager and Experience Platform up to 10.4 and classified as critical. Affected by this vulnerability is some unknown functionality. The manipulation with an unknown input leads to a deserialization vulnerability. The CWE definition for the vulnerability is CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Sitecore Experience Manager (XM) and Experience Platform (XP) 10.4 before KB1002844 allow remote code execution through insecure deserialization.

It is possible to read the advisory at support.sitecore.com. This vulnerability is known as CVE-2025-27218 since 02/20/2025. The exploitation appears to be easy. The attack can be launched remotely. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept.

Applying the patch 10.4 KB1002844 is able to eliminate this problem.

The vulnerability is also documented in the databases at Exploit-DB (52344) and CERT Bund (WID-SEC-2025-2924). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Sitecore Experience Manager

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 10.4 KB1002844

Timelineinfo

02/20/2025 🔍
02/20/2025 +0 days 🔍
02/20/2025 +0 days 🔍
01/03/2026 +317 days 🔍

Sourcesinfo

Advisory: KB1003535
Status: Confirmed

CVE: CVE-2025-27218 (🔍)
GCVE (CVE): GCVE-0-2025-27218
GCVE (VulDB): GCVE-100-296347
CERT Bund: WID-SEC-2025-2924 - Sitecore Experience Manager: Schwachstelle ermöglicht Codeausführung

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/20/2025 07:57
Updated: 01/03/2026 12:12
Changes: 02/20/2025 07:57 (54), 06/30/2025 22:07 (11), 01/03/2026 12:12 (7)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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