# CVE-2025-53690: Sitecore Multiple Products Deserialization of Untrusted Data Vulnerability

- Exploited (CISA KEV): yes, added 2025-09-04
- Published: 2025-09-03
- CVSS: 9 CRITICAL (v3.1)
- EPSS: 60.6% (99th percentile)
- CWE: CWE-502

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.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Blocks by default | 2025-09-04 | 1 |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | No public claim | — | — |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### Cloudflare

- 2025-09-04 · new · rule ed94c7ce5301411a94a21a096c410240 · default Block
  > Sitecore - Remote Code Execution - CVE:CVE-2025-53690. Previous action: N/A. New action: Block. This is a new detection
  Source: https://developers.cloudflare.com/changelog/post/2025-09-04-emergency-waf-release/

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2025-53690 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2025-53690