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
sitecore: experience commerce; sitecore: experience manager; sitecore: experience platform; sitecore: managed cloud
References2
- support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB10… Vendor Advisory
- labs.watchtowr.com/cache-me-if-you-can-sitecore-experience-plat… ExploitThird Party Advisory
Metrics
- CVSS 3.1
-
8.8
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 2% percentile: 76 · as of 8 November 2026
- CWE
- CWE-502
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