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Security audit

ai-newsletter-chn-for-hermes

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward AI-newsletter generator that uses web search and fetch tools, with its Chinese-language output requirement clearly aligned to its stated audience.

Before installing, expect to provide Brave and Firecrawl API keys and to receive newsletter content in Simplified Chinese by default. The skill appears purpose-aligned and does not request local system access or persistence.

A.I.G

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

SkillSpector

Vulnerability Patterns
  • 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
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (2)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The description explicitly requires the newsletter body and summaries to be returned in Simplified Chinese for a Chinese audience. This is a natural-language locale policy constraint without any user opt-in or alternative language option, which matches the policy-violation category for forced language or locale.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
98% confidence
Finding

The output instructions require all newsletter content and summaries to be in Simplified Chinese and do not provide a language selection mechanism. This imposes a fixed language policy on users, which is disallowed unless the locale restriction is justified or optional.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.