# CVE-2018-9206: Blueimp Blueimp jQuery-File-Upload

- Exploited (CISA KEV): no
- Published: 2018-10-11
- CVSS: not scored
- EPSS: 97.3% (100th percentile)

Unauthenticated arbitrary file upload vulnerability in Blueimp jQuery-File-Upload <= v9.22.0

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

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Blocks by default | 2026-03-23 | — |
| AWS | Before feed history | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | Before feed history | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2025-12-03 | 2610 |
| Akamai | No public source | — | — |
| OWASP CRS | Before feed history | — | — |

### Cloudflare

- 2026-03-23 · updated · rule 55fb1c76f0304f6a9d935d03479da68f · default Block
  > PHP, vBulletin, jQuery File Upload - Code Injection, Dangerous File Upload - CVE:CVE-2018-9206, CVE:CVE-2019-17132 (beta). Previous action: Log. New action: Block. This rule has been merged into the original rule "PHP, vBulletin, jQuery File Upload - Code Injection, Dangerous File Upload - CVE:CVE-2018-9206, CVE:CVE-2019-17132" (ID: ...824b817c )
  Source: https://developers.cloudflare.com/changelog/post/2026-03-23-waf-release/

### F5

- 2025-12-03 · new · rule 200020234
  > Added: signature 200020234 "Blueimp jQuery-File-Upload Unrestricted File Upload" (Malicious File Upload, risk High), systems: PHP. References: CVE-2018-9206.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog

## Our test (measured)

- OWASP Core Rule Set 4.25.0, paranoia level 1, anomaly threshold 5, default CRS settings: partial (1 of 3 requests blocked), template CVE-2018-9206, 2026-11-02
- OWASP Core Rule Set 4.25.0, paranoia level 2, anomaly threshold 5, default CRS settings: partial (1 of 3 requests blocked), template CVE-2018-9206, 2026-11-02

"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-2018-9206 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2018-9206