# CVE-2026-48276: ColdFusion | Unrestricted Upload of File with Dangerous Type (CWE-434)

- Exploited (CISA KEV): no
- Published: 2026-06-30
- CVSS: 10 CRITICAL (v3.1)
- EPSS: 1.3% (70th percentile)
- CWE: CWE-434

ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue does not require user interaction. Scope is changed.

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

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Blocks by default | 2026-07-21 | 21 |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2026-09-16 | 78 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### Cloudflare

- 2026-07-21 · new · rule 452a04be3f73458c863d8dae61349c8b · default Block
  > Adobe ColdFusion - File Upload Path Traversal - CVE:CVE-2026-48276. Previous action: Log. New action: Block. This is a new detection.
  Source: https://developers.cloudflare.com/changelog/post/2026-07-21-waf-release/

### F5

- 2026-09-16 · new · rule 200007115
  > Added: signature 200007115 "Adobe ColdFusion Path Traversal (3)" (Path Traversal, risk High), systems: Macromedia ColdFusion. References: CVE-2026-48276.
  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-2026-48276 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2026-48276