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Security audit

gettangemperors

Security checks for vulnerabilities and agentic risk

Overview

This skill transparently performs a fixed local read-only API request for Tang emperor data and shows no hidden, destructive, persistent, or credential-seeking behavior.

Install this only if you intend Codex to query a local backend at 127.0.0.1:8080 for this data. Confirm that service is yours or trusted, since the skill will send a GET request to that localhost endpoint when used.

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
  • 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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (3)

Undeclared Tool Scope

Medium
Category
MCP Least Privilege
Confidence
91% confidence
Finding

The skill performs network access to a local HTTP service but does not declare any tool scope or allowed-tools constraints. That omission weakens policy enforcement and reviewability, making it easier for an agent to invoke network-capable behavior without explicit authorization boundaries, especially against localhost services that may expose sensitive internal APIs.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

The trigger text is broad enough to cause invocation whenever users mention Tang emperors or related Chinese phrases, even when a local API call is unnecessary. Over-broad activation can increase the chance of unintended localhost requests and surprise network behavior, though the impact is limited here because the endpoint and use case are narrowly defined.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
95% confidence
Finding

The script emits user-facing text in Chinese (for example, the heading and emperor label) with no opt-in, fallback, or configuration for other languages. This is a natural-language policy concern because it forces a specific language on users rather than allowing a language choice.

Content

No source excerpt is available for this finding.