mailbluster-automation
Warn
Audited by Snyk on Feb 16, 2026
Risk Level: MEDIUM
Full Analysis
MEDIUM W011: Third-party content exposure detected (indirect prompt injection risk).
- Third-party content exposure detected (high risk: 0.70). The skill requires calling RUBE_SEARCH_TOOLS against the external Rube MCP (e.g., https://rube.app/mcp and composio.dev/toolkits/mailbluster) to fetch tool schemas, execution plans and related runtime data that the agent must read and interpret, exposing it to untrusted third‑party content that could carry indirect prompt injection.
MEDIUM W012: Unverifiable external dependency detected (runtime URL that controls agent).
- Potentially malicious external URL detected (high risk: 0.90). The skill requires adding the MCP server https://rube.app/mcp and at runtime calls (e.g., RUBE_SEARCH_TOOLS / RUBE_MULTI_EXECUTE_TOOL) fetch tool schemas and recommended execution plans from that server which directly control agent prompts/execution, so this external endpoint is a runtime dependency that can control the agent.
Audit Metadata