CVE-2025-27218
MediumExploitedPublic exploitSitecore Experience Manager (XM) and Experience Platform (XP) 10.4 before KB1002844 allow remote code execution through insecure deserialization.
Published Feb 20, 2025 · Updated Apr 14, 2026
Key Facts
Patch immediately- CVE-2025-27218 is a medium-severity vulnerability (CVSS 5.3 v3.1).
- It is exploited in the wild, listed in Industry KEV feed since Mar 27, 2025. Public exploit code is available.
- EPSS estimates a 65% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS (30-day exploit likelihood)
65%
Higher than 99.2% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
Available
Proof-of-concept or weaponized module
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Description
Sitecore Experience Manager (XM) and Experience Platform (XP) 10.4 before KB1002844 allow remote code execution through insecure deserialization.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Mar 27, 2025 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Timeline
Publicly disclosed
Feb 20, 2025
Added to Industry KEV feed
Mar 27, 2025
Last updated
Apr 14, 2026
Weakness Type
- CWE-94 Improper Control of Generation of Code ('Code Injection')
References
FAQ
Common Questions.
Sitecore Experience Manager (XM) and Experience Platform (XP) 10.4 before KB1002844 allow remote code execution through insecure deserialization.
It is exploited in the wild, listed in Industry KEV feed since Mar 27, 2025.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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