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Security audit

SaaS Custom Domains

Security checks for vulnerabilities and agentic risk

Overview

The required helper can add and update other agent skills, but this skill does not explain or control those lasting changes.

Before use, review and install a specific CLI release yourself. Disable automatic skill synchronization for every invocation using OO_SKILLS_SYNC_DISABLED=1, as described in the [command reference](https://github.com/oomol-lab/oo-cli/blob/main/docs/commands.md). Consider OOMOL's custody of your connected API key and approve exact change or deletion targets. The bundled instructions were fully inspected, but the remote installers and deployed connector implementation were not verified.

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
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Findings (3)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
98% confidence
Finding

The declared purpose concerns managing saascustomdomains.com data, but the only supplied command fetches and executes an Oomol CLI installer. No connection establishing this installer as a supporting dependency for the declared service is shown. The remote script's contents and additional effects cannot be determined from this code chunk.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

The installation command executes a mutable remote script directly in a shell without pinning a version or verifying its integrity; the PowerShell alternative has the same weakness. Compromise of the distribution endpoint could yield arbitrary code execution with the invoking user's permissions, although the missing-CLI prerequisite limits exposure and there is no evidence that the endpoint is malicious.

Content

Scanner excerpt · SKILL.md (reported line 65)May include surrounding context.

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 86)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