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Security audit

Code Helper

Security checks for vulnerabilities and agentic risk

Overview

This is a coding-practice tutoring skill with some broad auto-activation and optional Feishu export behavior users should notice before using.

Installers should expect this skill to take over many coding-related prompts because its activation terms are broad. Use care with the Feishu archive feature: review the generated notes and confirm the destination before uploading anything sensitive to a shared team document space.

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
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • 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)

Vague Triggers

High
Category
Not specified by scanner
Confidence
97% confidence
Finding

The activation keywords are extremely broad and overlap with ordinary programming discussions such as '代码', 'C++', '题目', and '思路'. This can cause the skill to auto-activate unintentionally in unrelated conversations, leading to unsolicited instruction injection, incorrect workflow takeover, or unexpected handling of user content under the skill’s rules.

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 3)May include surrounding context.

md
# ==============================
# 算法竞赛全能刷题助手 Skill
# 存放路径:.workbuddy/skills/code-helper/SKILL.md
# 适配人群:计算机大一新生、蓝桥杯/洛谷入门选手
# 支持:C/C++代码、题目解析、错因排查、性能优化、文档导出、知识点总结
# ==============================

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
92% confidence
Finding

The skill advertises one-click Feishu document export/archive but provides no warning that user content may be transmitted to an external service and stored persistently. Users may unknowingly send problem statements, notes, or potentially sensitive content outside the current environment without informed consent.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The archive command specifically directs storing notes in team Feishu documents but lacks any safety warning about external transmission, organizational visibility, or long-term retention. In a collaborative workspace, this increases the risk of accidental disclosure of user-generated content to broader audiences or systems beyond the user’s expectation.

Content

No source excerpt is available for this finding.