CVE-2019-9875 KEV
8.8
HIGH · CVSS 3.1 · EPSS 13.8% (pctl 96)
Patch first
On CISA KEV — known exploited in the wild, due 2025-04-16.
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.
Scoring
| CVSS | 8.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 13.8% — more likely to be exploited than 96% of all CVEs |
| Weakness | CWE-502 |
| On CISA KEV | yes — remediate by 2025-04-16 |
| Public exploit | none known |
| Published | 2019-05-31 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Sitecore CMS and Experience Platform (XP) Deserialization Vulnerability |
|---|---|
| Added | 2025-03-26 |
| Due | 2025-04-16 |
| Vendor / product | Sitecore / CMS and Experience Platform (XP) |
| Ransomware use | none reported |
Affected (1)
| Vendor | Product |
|---|---|
| sitecore | cms |
References
- 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-2019-9875
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