Vulnerability in Flowise
CVE-2025-71333
Flowise through 2.2.4 contains an unauthenticated arbitrary file upload vulnerability in the /api/v1/attachments endpoint when storageType is set to local. Attackers can exploit path traversal in the chatId and chatflowId parameters to upload malicious files to arbitrary directories, potentially enabling remote code execution and server compromise.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (58.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Flowise — versions 0
- Flowiseai Flowise
Weakness classification (CWE)
References
- github.com/FlowiseAI/Flowise/security/advisories/GHSA-h42x-xx2q-6v6g (Exploit, vendor-advisory, Vendor Advisory)
- www.vulncheck.com/advisories/flowise-arbitrary-file-upload-via-unauthenticated-… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2025-71333?
- CVE-2025-71333 is a critical-severity vulnerability in Flowise, classified under External Control of File Name or Path. CVSS score: 9.8/10. Published 2026-06-25.
- How severe is CVE-2025-71333?
- Critical severity. CVSS v3 base score is 9.8 out of 10.