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Security audit

Mindbody

Security checks for vulnerabilities and agentic risk

Overview

A Mindbody lookup can trigger remote software installation without a separate approval step, so the setup deserves review.

Review and approve CLI installation separately before allowing automatic setup. Prefer a pinned, integrity-verified release, and check its installation effects. The publisher documents OO_SKILLS_SYNC_DISABLED for preventing startup writes to agent skill directories in its [command reference](https://github.com/oomol-lab/oo-cli/blob/main/docs/commands.md). OOMOL mediates access to your connected account. The supplied skill shows no malicious behavior, but the remote installer remains unverified.

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
97% confidence
Finding

The supplied code performs remote installer execution rather than Mindbody data access. Although dependency installation can be a supporting implementation detail, this chunk establishes no connection between the Oomol installer and the declared functionality. The downloaded script's contents are not supplied, so its further behavior cannot be determined.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

The command pipes a mutable network response directly into Bash without a pinned version or independently verified integrity; the Windows alternative uses the same download-and-execute pattern. Compromise of the distribution endpoint or delivery infrastructure could therefore execute arbitrary code and access local files or credentials with the invoking user's privileges, although there is no evidence the current installer is malicious.

Content

Scanner excerpt · SKILL.md (reported line 55)May include surrounding context.

The setup workflow executes downloaded installation scripts without warning about local system changes or remote-code execution.

Medium
Category
Output Handling
Confidence
94% confidence
Finding

The setup instructions direct execution of remote shell or PowerShell code without requiring explicit approval for local installation or explaining its effects. Although this occurs only when the CLI is missing, it expands a read-oriented Mindbody task into local code execution with the invoking user'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 76)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