CVE-2019-9875
Sitecore CMS and Experience Platform (XP) Deserialization Vulnerability
Severity Score
8.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
Yes
*KEV
Decision
Act
*SSVC
Descriptions
Deserialization of Untrusted Data in the anti CSRF module in Sitecore through 9.1 allows an authenticated attacker to execute arbitrary code by sending a serialized .NET object in an HTTP POST parameter.
La deserialización de datos no confiables en el módulo anti CSRF en Sitecore hasta la versón 9.1, permite a un atacante identificado ejecutar código arbitrario mediante el envío un objeto .NET serializado dentro de un parámetro POST de HTTP.
Sitecore CMS and Experience Platform (XP) contain a deserialization vulnerability in the Sitecore.Security.AntiCSRF module that allows an authenticated attacker to execute arbitrary code by sending a serialized .NET object in the HTTP POST parameter __CSRFTOKEN.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Act
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-03-19 CVE Reserved
- 2019-05-31 CVE Published
- 2025-03-26 CVE Updated
- 2025-03-26 Exploited in Wild
- 2025-03-26 First Exploit
- 2025-04-15 EPSS Updated
- 2025-04-16 KEV Due Date
CWE
- CWE-502: Deserialization of Untrusted Data
CAPEC
References (3)
| URL | Tag | Source |
|---|---|---|
| https://www.synacktiv.com/blog.html | Third Party Advisory |
| URL | Date | SRC |
|---|---|---|
| https://www.synacktiv.com/ressources/advisories/Sitecore_CSRF_deserialize_RCE.pdf | 2025-03-26 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://dev.sitecore.net/Downloads.aspx | 2019-06-03 |