# CVE-2025-34300: Sawtooth Software Lighthouse Studio < 9.16.14 Pre-Authentication RCE

- Exploited (CISA KEV): no
- Published: 2025-07-16
- CVSS: 10 CRITICAL (v4.0)
- EPSS: 81.3% (100th percentile)
- CWE: CWE-20, CWE-1336

A template injection vulnerability exists in Sawtooth Software’s Lighthouse Studio versions prior to 9.16.14 via the  ciwweb.pl http://ciwweb.pl/  Perl web application. Exploitation allows an unauthenticated attacker can execute arbitrary commands.

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

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | No public claim | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2025-12-03 | 140 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### F5

- 2025-12-03 · new · rule 200103657
  > Added: signature 200103657 "Sawtooth Lighthouse Studio Remote Code Execution" (Command Execution, risk High), systems: Other Web Server. References: CVE-2025-34300.
  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-2025-34300, 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-2025-34300, 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-2025-34300 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2025-34300