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Security audit

ClickHelp

Security checks for vulnerabilities and agentic risk

Overview

The ClickHelp workflow is coherent, but its setup fallback runs downloaded software without verification or a clear user approval step.

Review the setup behavior before installing. Prefer installing a reviewed, verified CLI yourself, and require approval before downloaded setup code runs. Review the CLI's automatic agent-skill installation behavior and grant only the ClickHelp permissions you need. The sole bundled file was inspected; external installer and CLI behavior were not verified against a fixed release.

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
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Output HandlingUnvalidated Output Injection, Cross-Context Output, Unbounded Output
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Findings (4)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
95% confidence
Finding

The supplied chunk performs remote installer execution rather than any visible ClickHelp operation. Although installing a dependency can be a supporting implementation detail, nothing supplied establishes this installer's connection to ClickHelp. The downloaded script's further behavior cannot be determined from this chunk.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
99% confidence
Finding

Piping a remotely fetched script directly into bash executes mutable external content without a pinned version, integrity check, or opportunity to review it; the PowerShell alternative has the same issue. Although the URL is consistent with the documented CLI provider and installation is conditional, compromise of the distribution endpoint could execute attacker-controlled code with the invoking process's privileges.

Content

Scanner excerpt · SKILL.md (reported line 61)May include surrounding context.

The setup fallback instructs the agent to execute remotely downloaded installation scripts without warning the user about local system changes.

Medium
Category
Output Handling
Confidence
95% confidence
Finding

The missing-CLI fallback directs installation without requiring approval for executing downloaded code or modifying the local environment. The error-triggered condition limits exposure, but authorization to operate ClickHelp does not necessarily authorize software installation with the agent's local privileges.

Content

No source excerpt is available for this finding.

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
80% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · SKILL.md (reported line 82)May include surrounding context.

md
- **`OOMOL_INSUFFICIENT_CREDIT`** — OOMOL billing stop. Recharge at `https://console.oomol.com/billing/token-recharge` before retrying.

- **HTTP 402 without `OOMOL_INSUFFICIENT_CREDIT`** — the third-party account itself has no active plan or credit. Report the provider error message as is; do not ask the user to recharge OOMOL.

## Resources