# CVE-2025-34511: Sitecore PowerShell Extension RCE via Unrestricted Upload

- Exploited (CISA KEV): no
- Published: 2025-06-17
- CVSS: 8.8 HIGH (v3.1)
- EPSS: 30.4% (98th percentile)
- CWE: CWE-434

Sitecore PowerShell Extensions, an add-on to Sitecore Experience Manager (XM) and Experience Platform (XP), through version 7.0 is vulnerable to an unrestricted file upload issue. A remote, authenticated attacker can upload arbitrary files to the server using crafted HTTP requests, resulting in remote code execution.

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

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Blocks by default | 2025-08-04 | 48 |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2025-08-15 | 59 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### Cloudflare

- 2025-08-04 · new · rule b8ab4644f8044f3485441ee052f30a13 · default Block
  > Sitecore - Dangerous File Upload - CVE:CVE-2025-34510, CVE:CVE-2025-34511. Previous action: Log. New action: Block. This is a New Detection
  Source: https://developers.cloudflare.com/changelog/post/2025-08-04-waf-release/

### F5

- 2025-08-15 · new · rule 200020228
  > Added: signature 200020228 "Sitecore PowerShell Extension Remote Code Execution" (Malicious File Upload, risk High), systems: ASP, ASP.NET. References: CVE-2025-34511.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog

"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-2025-34511 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2025-34511