CVE-2025-53690

critical · 9Actively exploited

On the CISA Known Exploited Vulnerabilities catalog

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Added 2025-09-04Remediation due 2025-09-25

Deserialization of Untrusted Data vulnerability in Sitecore Experience Manager (XM), Sitecore Experience Platform (XP) allows Code Injection.This issue affects Experience Manager (XM): through 9.0; Experience Platform (XP): through 9.0.

CVSS

51.1%

EPSS (exploit prob.)

99th

EPSS percentile

2025-09-03

Published

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Weaknesses

CWE-502

Affected products

Vendor	Product	Affected versions
sitecore	experience_commerce	<= 9.0
sitecore	experience_manager	<= 9.0
sitecore	experience_platform	<= 9.0
sitecore	managed_cloud	all versions

Check a specific version with /api/v1/cve/match.

References

https://cloud.google.com/blog/topics/threat-intelligence/viewstate-deserialization-zero-day-vulnerability
https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1003865
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-53690

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-53690