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Security audit

Zyte API

Security checks for vulnerabilities and agentic risk

Overview

The Zyte functions fit the stated purpose, but setup can execute an unverified remote installer and introduce broader changes to your agent environment.

Review the setup behavior before installing. Use a separately reviewed CLI installation, require approval before remote installers run, and check automatic skill synchronization settings. OOMOL mediates requests using your connected Zyte credentials, and usage may incur charges. The external installer and live connector implementation were not validated.

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 (5)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
99% confidence
Finding

The supplied command does not interact with Zyte or retrieve data through its API. It executes an installation script hosted on an unrelated domain, with no demonstrated connection to the declared functionality. The downloaded script's further behavior cannot be determined from this chunk.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
91% confidence
Finding

The only supplied command performs authentication rather than the declared Zyte API operations. Authentication could be a supporting implementation detail if tied to Zyte, but the supplied content establishes no such relationship. The mismatch is based on this behavioral divergence, not the absence of declared permissions.

Content

No source excerpt is available for this finding.

External Script Fetching

High
Category
Supply Chain
Confidence
98% confidence
Finding

The command pipes a remotely fetched, unpinned script directly into Bash without integrity verification or review; the PowerShell example uses the same download-and-execute pattern. If the installer distribution is compromised, attacker-controlled code can execute with the agent process's privileges and access its files or credentials; HTTPS and the legitimate setup purpose do not eliminate this supply-chain risk.

Content

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

The setup workflow instructs the agent to execute remote installation scripts without warning the user about system changes.

Medium
Category
Output Handling
Confidence
94% confidence
Finding

A missing CLI triggers instructions to install software without first explaining the system changes or obtaining explicit user approval. Although this is relevant setup rather than malicious scope expansion, a request to read Zyte data does not necessarily authorize running an installer or modifying the local environment.

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