CVE-2025-71333

Flowise - Arbitrary File Upload via Unauthenticated /api/v1/attachments Endpoint

Published Jun 25, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Flowise - Arbitrary File Upload via Unauthenticated /api/v1/attachments Endpoint
First Time appeared Flowiseai
Flowiseai flowise
Weaknesses CWE-73
CPEs cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*
Vendors & Products Flowiseai
Flowiseai flowise
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Jun 27, 2026, 2:32 AM
Reserved
Jun 20, 2026, 1:48 AM
Status
Analyzed
Published
Jun 25, 2026, 10:16 PM
Modified
Oct 12, 2026, 9:10 PM