CVE-2025-34300 in the critical feed json
Sawtooth Software Lighthouse Studio < 9.16.14 Pre-Authentication RCE
published last yr. modified 4mo ago also EUVD-2025-21694
- cvss
- 10.0
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 81.3%
- EPSS 81.3% chance of exploitation in 30 days, percentile 99.6%
- public exploits
- 1
- Metasploit, plus a Nuclei check
Summary
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.
Patch / fix
- Sawtooth Software Lighthouse Studio 9.16.14
Is CVE-2025-34300 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerTimeline
- First public exploit (Metasploit exploit/multi/http/lighthouse_studio_unauth_rce_cve_2025_34300)
- Published
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- last yr.
Exploit prediction
81.26% chance of exploitation in the next 30 days, higher than 99.6% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- Metasploit exploit/multi/http/lighthouse_studio_unauth_rce_cve_2025_34300 Template Injection Vulnerability in Sawtooth Software's Lighthouse Studio (CVE-2025-34300) metasploit exploit, excellent rank, 2025-07-16
- Nuclei template SawtoothSoftware Lighthouse Studio < 9.16.14 - Pre-Auth Remote Code Execution nuclei detection template
- slcyber.io https://slcyber.io/assetnote-security-research-center/rce-in-the-most-popular-survey-software-youve-never-heard-of/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 10.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H |
| CNA | 4.0 | 10.0 | CVSS: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 |
Affected products
- Sawtooth Software Lighthouse Studio
Classification
References
-
sawtoothsoftware.com
/resources/software-downloads/lighthouse-studio/version-history
product, patch
-
slcyber.io
/assetnote-security-research-center/rce-in-the-most-popular-survey-software-youve-never-heard-of/
technical-description, exploit
-
vulncheck.com
/advisories/sawtooth-software-lighthouse-studio-preauthentication-rce
third-party-advisory
Sources
- CVE List CVE-2025-34300
- NVD CVE-2025-34300
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