Description
This module exploits a remote code execution vulnerability in Flowise versions >= 2.2.7-patch.1 and < 3.0.1. The vulnerability exists in the customMCP endpoint (/api/v1/node-load-method/customMCP) located in packages/components/nodes/tools/MCP/CustomMCP/CustomMCP.ts and packages/components/nodes/tools/MCP/core.ts, which allows users to execute arbitrary commands via StdioClientTransport by using the 'x-request-from: internal' header. When FLOWISE_USERNAME and FLOWISE_PASSWORD are not configured, the exploit works unauthenticated. If Basic Auth is enabled, the FLOWISE_USERNAME and FLOWISE_PASSWORD options must be set to provide credentials.
Module options
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
msf > use exploit/multi/http/flowise/custommcp_rcemsf undefined(custommcp_rce) > show actions ...actions...msf undefined(custommcp_rce) > set ACTION < action-name >msf undefined(custommcp_rce) > show options ...show and set options...msf undefined(custommcp_rce) > runPrioritise with Active Threat Intelligence
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