Security audit

IMDb Critics Review Summary API

Security checks for vulnerabilities and agentic risk

Overview

This skill is a narrow IMDb review-summary API wrapper, but it should be reviewed because it handles the JustOneAPI token in URL and command-line forms that can leak through logs or process views.

Install only if you are comfortable sending IMDb lookup ids and your JustOneAPI token to api.justoneapi.com. Prefer using a restricted or revocable token, avoid sharing command lines or logs from runs, and rotate the token if it may have appeared in process telemetry, shell history, proxy logs, or copied URLs.

A.I.G

Vulnerability Patterns

Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
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

Findings (1)

T09 · Insecure Skill Coding Practices

Warning

Location: bin/run.mjs:20
Finding: API Token Exposed Through URL Query Parameters and Command-Line Arguments
Content: View full analysis
"}' ``` ### Technical Analysis The helper accepts the JustOneAPI authentication token through `--token` and stores it in `params.token`. Because the operation metadata marks `token` as a query parameter, `applyQueryParams` appends the credential to the request URL before `fetch` is called. HTTPS encrypts the request in transit, so passive network observers cannot normally read the token. However, placing credentials in URLs remains unsafe because complete URLs may be retained by reverse proxies, API gateways, web-server access logs, monitoring systems, tracing plat ...[truncated 2397 chars]
Remediation: View remediation

SkillSpector

Vulnerability Patterns

Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access

Findings (5)

Undeclared Tool Scope

Medium

Category: MCP Least Privilege
Confidence: 70% confidence
Finding: Without declared permissions the skill's intent is opaque and cannot be validated.
Content: No source excerpt is available for this finding.

Missing User Warnings

Medium

Category: Not specified by scanner
Confidence: 96% confidence
Finding: The skill defines the authentication token as a query parameter and later appends all query parameters directly into the request URL. Tokens in URLs are commonly exposed through logs, browser/history layers, intermediary proxies, monitoring systems, and error messages, making credential leakage more likely than if the token were sent in an Authorization header. In this skill context, the risk is real because the code is explicitly a wrapper around a third-party external API and gives no warning that the secret will be placed in the URL.
Content: No source excerpt is available for this finding.

Missing User Warnings

Medium

Category: Not specified by scanner
Confidence: 97% confidence
Finding: Passing an authentication token in the query string is dangerous because query parameters are commonly logged by servers, proxies, analytics tools, browser histories, and monitoring systems. This increases the risk of credential leakage and replay if any intermediary or downstream system captures request URLs.
Content: No source excerpt is available for this finding.

Missing User Warnings

Low

Category: Not specified by scanner
Confidence: 82% confidence
Finding: The script performs an outbound fetch to api.justoneapi.com using user-supplied parameters, including title identifiers and an authentication token. While network access is the skill's core function, the file itself contains no visible warning, print, or comment disclosing that request data is transmitted to a third-party service.
Content: No source excerpt is available for this finding.

Vague Triggers

Low

Category: Not specified by scanner
Confidence: 79% confidence
Finding: This manifest-style file describes the skill's purpose but does not define any specific trigger phrases, activation boundaries, or negative examples. In systems that infer invocation from descriptions, broad phrasing like calling an IMDb review summary by ID may be matched too loosely because the scope of when this skill should or should not activate is not explicitly constrained.
Content: No source excerpt is available for this finding.