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Security audit

Min Web Search

Security checks for vulnerabilities and agentic risk

Overview

This skill is a simple Bing RSS search helper whose network behavior is disclosed and matches its purpose.

Install only if you are comfortable sending search terms to Bing. Avoid searching for secrets, credentials, private customer data, or confidential internal terms through this skill.

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
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (4)

Undeclared Tool Scope

Medium
Category
MCP Least Privilege
Confidence
92% confidence
Finding

The skill documents and encourages network and shell-capable execution paths, but it does not declare any explicit tool scope such as permissions or allowed-tools. That creates a governance gap: an agent or operator may invoke the skill without clear consent boundaries for outbound network access or shell execution, increasing the chance of unintended data egress or unsafe command use.

Content

No source excerpt is available for this finding.

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
87% confidence
Finding

The skill tells users how to perform searches but does not clearly warn, near usage, that the query text will be transmitted to Bing over the network. This can lead users to unknowingly send sensitive prompts, internal terms, or personal data to a third-party service.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
72% confidence
Finding

The skill is tied to a single provider/context and does not give users a choice of search backend or locale behavior. While not directly exploitable like code injection, this can create privacy, compliance, or trust issues if users are unaware that all searches are routed to that specific provider and regional result context.

Content

No source excerpt is available for this finding.

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
89% confidence
Finding

The script sends the user's raw search query to Bing over the network without any notice, consent prompt, or privacy warning. While this is the core function of a web search tool and not evidence of malicious behavior, it can expose sensitive user-entered data to an external third party if users do not realize their input leaves the local environment.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.