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Security audit

每日新闻日报 v2.3

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed Chinese daily-news report generator that searches the web, formats a report, and saves a local archive copy.

Install this if you want a Chinese daily news report that performs multiple web searches and keeps local report archives. Review or disable the cron example and delete memory/daily_news_*.md files if you do not want persistent historical reports.

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
  • 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 (5)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
82% confidence
Finding

The skill’s natural-language instructions and reporting template are entirely specified in Chinese, and the cron payload also invokes the skill in Chinese. There is no indication that users may choose another language or that the Chinese-only behavior is a documented, justified locale restriction.

Content

No source excerpt is available for this finding.

Skill Enumeration

Medium
Category
Agent Snooping
Confidence
80% confidence
Finding

Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.

Content

Scanner excerpt · SKILL.md (reported line 153)May include surrounding context.

md
"schedule": { "kind": "cron", "expr": "30 8 * * 1-5", "tz": "Asia/Shanghai" },
  "payload": {
    "kind": "agentTurn",
    "message": "按 skills/daily-news/SKILL.md 执行每日新闻日报 v2.3"
  },
  "timeoutSeconds": 900
}

Skill Enumeration

Medium
Category
Agent Snooping
Confidence
80% confidence
Finding

Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.

Content

Scanner excerpt · SKILL.md (reported line 163)May include surrounding context.

md
"schedule": { "kind": "cron", "expr": "30 8 * * 1-5", "tz": "Asia/Shanghai" },
  "payload": {
    "kind": "agentTurn",
    "message": "按 skills/daily-news/SKILL.md 执行每日新闻日报 v2.3"
  },
  "timeoutSeconds": 900
}

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
84% confidence
Finding

The natural-language description is entirely in Chinese and provides no indication that users can choose another language or locale. Under the policy, forcing a specific language without user opt-in is a reportable locale-policy issue unless the constraint is clearly documented and justified.

Content

No source excerpt is available for this finding.

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
93% confidence
Finding

The skill explicitly instructs saving the full generated report to memory/daily_news_YYYY-MM-DD.md without any notice, consent flow, or retention limit. Persistent storage of outputs can unintentionally retain sensitive user context, proprietary prompts, or browsing-derived content beyond the immediate session, creating avoidable privacy and data-governance risk.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.