CVE-2019-9875

high

Description

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.

References

https://www.synacktiv.com/blog.html

https://thehackernews.com/2025/03/cisa-flags-two-six-year-old-sitecore.html

https://www.cisa.gov/news-events/alerts/2025/03/26/cisa-adds-two-known-exploited-vulnerabilities-catalog

https://www.synacktiv.com/ressources/advisories/Sitecore_CSRF_deserialize_RCE.pdf

https://dev.sitecore.net/Downloads.aspx

Details

Source: Mitre, NVD

Published: 2019-05-31

Updated: 2025-04-04

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.22413

Detections

Analytics