critical9.8Known exploited
CVE-2019-9874
Sitecore CMS and Experience Platform (XP) Deserialization Vulnerability
Exploited in the wild
This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2025-03-26. Federal due date: 2025-04-16.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Sitecore | Cms | from 7.0 through 7.2 |
| Sitecore | Experience Platform | from 7.5 through 8.2 |
Weakness classification
References
- NVD record
- CVE.org record
- CISA KEV catalog
- 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