Vulnerability Report

CVE-2019-9874

RCE CISA KEV Active

Title: Sitecore Cms RCE

RCE

Proof Of Concept

No public PoC currently indexed for CVE-2019-9874.

CWE Category CWE-502
Published Date May 31, 2019
Modified Date Nov 07, 2025
Exploit Status Not Found
Score 9.8 CVSS v3.1
Exploit Probability (EPSS)
83.86%

Vulnerability Summary

CVE-2019-9874: Deserialization of Untrusted Data in the Sitecore.Security.AntiCSRF (aka anti CSRF) module in Sitecore CMS 7.0 to 7.2 and Sitecore XP 7.5 to 8.2 allows an unauthenticated attacker to execute arbitrary code by sending a serialized .NET object in the HTTP POST parameter __CSRFTOKEN.

Impacted Vendors

P
patronet 1
S
sitecore 2

Reference Links

https://dev.sitecore.net/Downloads.aspx https://www.synacktiv.com/blog.html https://www.synacktiv.com/ressources/advisories/Sitecore_CSRF_deserialize_RCE.pdf https://dev.sitecore.net/Downloads.aspx https://www.synacktiv.com/blog.html https://www.synacktiv.com/ressources/advisories/Sitecore_CSRF_deserialize_RCE.pdf https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-9874
CVSS v3.1
Source Entity [email protected]
Severity CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity HIGH
7.5
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2019-9874 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.