CVE-2025-53690 kev in the critical feed json
Sitecore Products ViewState Deserialization Vulnerability
published last yr. modified 22d ago also EUVD-2025-26629
- cvss
- 9.0
- version 3.1, CNA
- cisa kev
- Exploited
- added 2025-09-04
- epss
- 60.7%
- EPSS 60.7% chance of exploitation in 30 days, percentile 99.1%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
cisa required action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Is CVE-2025-53690 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerTimeline
- Published
- Added to CISA KEV
- CISA SSVC: exploitation active
- CISA patch deadline
Known exploited
- Added
- last yr.
- Patch by
- 2025-09-25 (last yr.)
- Ransomware
- Not known
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Vendor, product
- Sitecore, Multiple Products
- CISA name
- Sitecore Multiple Products Deserialization of Untrusted Data Vulnerability
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- no
- Technical impact
- total
- Assessed
- last yr.
Exploit prediction
60.71% chance of exploitation in the next 30 days, higher than 99.1% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- cloud.google.com https://cloud.google.com/blog/topics/threat-intelligence/viewstate-deserialization-zero-day-vulnerability referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H |
Affected products
- Sitecore Experience Manager (XM)
- Sitecore Experience Platform (XP)
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
cloud.google.com
/blog/topics/threat-intelligence/viewstate-deserialization-zero-day-vulnerability
exploit, third-party-advisory
-
support.sitecore.com
/kb?id=kb_article_view&sysparm_article=KB1003865
vendor-advisory
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-53690
government-resource, us-government-resource
Sources
- CVE List CVE-2025-53690
- NVD CVE-2025-53690
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.