CVE-2025-53690CRITICAL 9.0CISA KEVEPSS p97.7%
CVE-2025-53690Sitecore Multiple Products Deserialization of Untrusted Data Vulnerability
Sitecore / Multiple Products
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.
Scoring
| CVSS 3.1 | 9.0 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H |
| EPSS | 26.31% probability of exploitation · percentile 97.7% · 2026-06-18T12:00:27Z |
| Published | 2025-09-03 |
| Last modified | 2025-10-30 |
CISA KEV entry
Added to KEV: 2025-09-04
Underlying weaknesses· 1
References
1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Deserialization of Untrusted Datacwe-502 | 0% | live |
(incoming)1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| KEVEntry | Sitecore Multiple Products Deserialization of Untrusted Data Vulnerabilitykev-cve-2025-53690 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.