CVE-2025-53690 — Sitecore Multiple Products Deserialization of Untrusted Data Vulnerability
CVE-2025-53690: Sitecore Multiple Products Deserialization of Untrusted Data Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Sitecore |
| Product | Multiple Products |
| Date added | 2025-09-04 |
| Due date | 2025-09-25 |
| Ransomware campaign use | Unknown |
Description
Sitecore Experience Manager (XM), Experience Platform (XP), Experience Commerce (XC), and Managed Cloud contain a deserialization of untrusted data vulnerability involving the use of default machine keys. This flaw allows attackers to exploit exposed ASP.NET machine keys to achieve remote code execution.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1003865 ; https://nvd.nist.gov/vuln/detail/CVE-2025-53690
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-53690
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog