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Security audit

Smartlead

Security checks for vulnerabilities and agentic risk

Overview

The Smartlead reader needs review because its setup directs the agent to execute remote installation scripts without verification or explicit approval.

Review and install a verified CLI version yourself, or require explicit approval before the agent performs setup. Understand that OOMOL mediates access to your Smartlead account and that upstream documents installation of additional agent skills. The concern is uncontrolled setup execution; the inspected artifact does not establish malicious intent or data theft.

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
  • 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
  • Output HandlingUnvalidated Output Injection, Cross-Context Output, Unbounded Output
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
Findings (5)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
96% confidence
Finding

The supplied chunk performs remote script execution rather than searching or reading Smartlead data. Although installing a dependency could be a supporting implementation detail, nothing supplied establishes this installer's role in the declared functionality. The downloaded script's contents and further effects are not visible.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
99% confidence
Finding

Piping an HTTPS response directly into bash executes mutable remote code without verifying its integrity or reviewing it. Compromise of the installer host or release pipeline could execute attacker-controlled commands with the agent's privileges, potentially exposing local data and credentials; the legitimate CLI dependency does not eliminate that risk.

Content

Scanner excerpt · SKILL.md (reported line 58)May include surrounding context.

First-time setup instructs the agent to execute downloaded installation scripts without warning about the system-integrity risk.

Medium
Category
Output Handling
Confidence
96% confidence
Finding

The fallback setup directs immediate execution of downloaded shell or PowerShell scripts without an integrity check or explicit installation approval. Although limited to a missing-CLI error, this turns a read-oriented Smartlead request into local code execution and system modification with the agent's 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 79)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

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 84)May include surrounding context.

md
## Resources

- Smartlead homepage: https://www.smartlead.ai
- API documentation: https://api.smartlead.ai/