CVE-2025-34300

Sawtooth Software Lighthouse Studio < 9.16.14 Pre-Authentication RCE

10.0 CriticalPublic exploit

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

81.3%Up 81.0 points since Jul 17, 2025

What each source reports

CVE List Score used 10.0

Sawtooth Software Lighthouse Studio < 9.16.14 Pre-Authentication RCE

Record: CVE-2025-34300
CVSS 4.0: 10.0 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Weakness: CWE-20, CWE-1336
Updated: 2026-11-02

EUVDEUVD-2025-21694 10.0

Record: EUVD-2025-21694
CVSS 4.0: 10.0 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-m8mc-qpg2-g56x 10.0

A template injection vulnerability exists in Sawtooth Software’s Lighthouse Studio versions prior...

Record: GHSA-m8mc-qpg2-g56x
CVSS 4.0: 10.0 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness: CWE-20
Updated: 2026-11-02

NVD 10.0

Record: CVE-2025-34300
CVSS 4.0: 10.0 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness: CWE-20, CWE-1336
Updated: 2026-11-02

Affected products

sawtooth software lighthouse studio

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Metasploit	Template Injection Vulnerability in Sawtooth Software's Lighthouse Studio (CVE-2025-34300)	2025-07-16
Nuclei	SawtoothSoftware Lighthouse Studio < 9.16.14 - Pre-Auth Remote Code Execution
PoC in GitHub	jisi-001/CVE-2025-34300POC	2025-09-01

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, Metasploit, Nuclei, NVD, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-34300 is a critical vulnerability (CVSS 10.0) in Sawtooth Software Lighthouse Studio, published July 16, 2025. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 81.3%, the 99th percentile. No source names a fixed version.