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Security audit

wechat-article-extraction-mp-weixin-qq-com news-webpage-cleaning blog-post-parsing metadata-extraction-title-author-date multiple-output-formats-markdown-json-plain-text batch-processing-support

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed webpage content extractor, with the main caution that user-supplied URLs may be fetched through external extraction tools.

Install only if you intend to use it for public webpage extraction. Do not submit private links, internal network URLs, login-protected pages, or URLs containing tokens unless you are comfortable with the fetch and extraction process contacting those destinations or related extraction services.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (2)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
88% confidence
Finding

The natural-language instructions and descriptions in the file are overwhelmingly Chinese, and the skill is described as optimized for Chinese content without offering users a language or locale choice. Under the stated policy, forcing a specific language without user opt-in is a reportable issue unless the locale restriction is clearly documented and justified as region-specific.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The skill invokes outbound fetching against arbitrary user-supplied URLs and references third-party extraction components, but it does not clearly warn users that requested URLs and retrieved page contents may be transmitted to external services or remote sites. This can cause unintended disclosure of sensitive URLs, tokens in query strings, internal endpoints, or proprietary content if a user supplies non-public targets.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.