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Security audit

French Business Analyser

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed French business due-diligence MCP that sends business identifiers and optional invoice data to a remote service, with paid calls gated by user consent.

Install only if you are comfortable sending French company identifiers and, when you choose invoice features, invoice text or IBAN data to the hosted MCP service and its disclosed server-side providers. Confirm your client enforces the stated consent prompt before any paid call, especially in automated payment workflows.

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs
Vulnerability Patterns
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (5)

Credential Access

High
Category
Privilege Escalation
Confidence
60% confidence
Finding

Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.

Content

Scanner excerpt · SKILL.md (reported line 86)May include surrounding context.

bash
git clone https://github.com/Vannelier/MCP-business-checker.git
cp .env.example .env  # fill in your credentials
docker build -t business-checker-eu .
docker run -p 8000:8000 --env-file .env business-checker-eu

Credential Access

High
Category
Privilege Escalation
Confidence
60% confidence
Finding

Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.

Content

Scanner excerpt · SKILL.md (reported line 88)May include surrounding context.

bash
git clone https://github.com/Vannelier/MCP-business-checker.git
cp .env.example .env  # fill in your credentials
docker build -t business-checker-eu .
docker run -p 8000:8000 --env-file .env business-checker-eu

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The description states the tool returns a 'French summary,' which imposes a specific language in the skill behavior. The file does not indicate that users can opt into another language or choose locale, so this is a natural-language policy concern.

Content

No source excerpt is available for this finding.

Rp1

Medium
Category
MCP Rug Pull
Confidence
75% confidence
Finding

Docker image references without a specific tag (:latest is implicit) or digest (@sha256:...) can be silently replaced by a malicious image.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
86% confidence
Finding

The description states the skill is for analysing a French supplier and frames its purpose entirely around French registries, which imposes a locale-specific scope. There is no explicit user choice or opt-in for language/locale, and no clear justification in the README that this regional restriction is a documented compliance-bound limitation.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.