by Kastro
Paper/Archive/CVE-2025-71334

CVE-2025-71334

Flowise Flowise — Flowise - Arbitrary File Access via Missing Chat Flow ID Validation

EPSS 4%public exploitCVSS 9.8
critical.is priorityof 100
58
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 91.2.912 × 2018.2Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

Flowise before 3.0.6 contains an arbitrary file access vulnerability due to missing validation that the chatflowId and chatId parameters are UUIDs or numbers in file handling operations. By supplying a path-traversal value (e.g., '../../../../../tmp') as the chatflow id, an unauthenticated attacker can use the /api/v1/chatflows endpoint (via addBase64FilesToStorage) to write arbitrary files, and the /api/v1/get-upload-file and /api/v1/openai-assistants-file/download endpoints (via streamStorageFile) to read arbitrary files. Arbitrary file write may lead to remote code execution.

Affected

ProductAffectedFixed inSource
Flowise< 3.0.63.0.6CNA

Scores by source

VulnCheck (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitgithub.com/FlowiseAI/Flowise/security/advisories/GHSA-q67q-549q-p849patchgithub.com/FlowiseAI/Flowise/commit/8bd3de41533de78e4ef6c980e5704a1f9cb7ae6fpatchgithub.com/FlowiseAI/Flowise/commit/c2b830f279e454e8b758da441016b2234f220ac7writeupvulncheck.com/advisories/flowise-arbitrary-file-access-via-missing-chat-flow-id-validation