Vulnerability · Published Sep 3, 2025 · Assigned by Wiz
CVE-2025-53691Sitecore Experience Remote Code Execution through Insecure Deserialization
High 8.8
In plain English
A high-severity unsafe deserialization in Experience Manager (XM) from Sitecore. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
Deserialization of Untrusted Data vulnerability in Sitecore Experience Manager (XM), Sitecore Experience Platform (XP) allows Remote Code Execution (RCE).This issue affects Experience Manager (XM): from 9.0 through 9.3, from 10.0 through 10.4; Experience Platform (XP): from 9.0 through 9.3, from 10.0 through 10.4.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Sitecore | Experience Manager (XM) | 9.0 – through 9.310.0 – through 10.4 |
| Sitecore | Experience Platform (XP) | 9.0 – through 9.310.0 – through 10.4 |
Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H