# CVE-2022-43140: CVE-2022-43140

- Exploited (CISA KEV): no
- Published: 2022-11-17
- CVSS: 7.5 HIGH (v3.1)
- EPSS: 2.1% (82th percentile)

kkFileView v4.1.0 was discovered to contain a Server-Side Request Forgery (SSRF) via the component cn.keking.web.controller.OnlinePreviewController#getCorsFile. This vulnerability allows attackers to force the application to make arbitrary requests via injection of crafted URLs into the url parameter.

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

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Before feed history | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | Before feed history | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2024-03-12 | 481 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### F5

- 2024-03-12 · new · rule 200014038
  > Added: signature 200014038 "kkFileView Server-Side Request Forgery" (Abuse of Functionality, risk Medium), systems: Java Servlets/JSP. References: CVE-2022-43140.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog
- 2024-05-21 · new · rule 200014038
  > Added: signature 200014038 "kkFileView Server-Side Request Forgery" (Abuse of Functionality, risk Medium), systems: Java Servlets/JSP. References: CVE-2022-43140.
  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: passed (0 of 1 requests blocked), template CVE-2022-43140, 2026-11-02
- OWASP Core Rule Set 4.25.0, paranoia level 2, anomaly threshold 5, default CRS settings: passed (0 of 1 requests blocked), template CVE-2022-43140, 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-2022-43140 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2022-43140