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Security audit

天台研究

Security checks for vulnerabilities and agentic risk

Overview

This is a domain research skill with some broad and external-reference behavior, but no hidden execution, persistence, or credential handling was found.

Before installing, users should understand that this skill may use named knowledge-base search heavily and may use external CBETA or document tools when the task calls for them. Avoid using it for private document editing unless you intend the agent to handle those files or online docs.

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
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
Findings (6)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
92% confidence
Finding

The trigger list is broad and includes common Tiantai-related terms that may appear in ordinary discussion, making unintended invocation more likely. Misfires can route user content into a more privileged or differently scoped workflow than expected, especially one that performs broad retrieval or uses external references.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
88% confidence
Finding

The catch-all wording for 'any issue involving Tiantai doctrine' creates an unbounded scope that can absorb loosely related queries. Overbroad scope increases the chance of accidental invocation, unnecessary retrieval, and use of tools or behaviors the user did not intend.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

Medium
Category
Not specified by scanner
Confidence
88% confidence
Finding

The skill claims a constrained data-flow model of 'knowledge-base only' by default, but later introduces external CBETA APIs, online links, and online document tooling. This inconsistency can mislead operators and users about where data may be sent, weakening trust boundaries and increasing the chance of unintended external transmission or tool use.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The file requires use of Traditional Chinese for retrieval, including “必须用繁体中文检索,” without indicating user choice or documenting why this locale constraint should override user preference. This is a natural-language locale policy issue because it forces a language variant rather than offering opt-in or transparent justification in user-facing terms.

Content

No source excerpt is available for this finding.

Context-Inappropriate Capability

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

Adding local doc/docx processing and online document editing to a doctrinal research skill expands capabilities beyond the stated purpose, creating unnecessary attack surface. Extra tooling can enable data exfiltration, unintended file handling, or unauthorized modification workflows unrelated to answering religious research queries.

Content

No source excerpt is available for this finding.

External Transmission

Medium
Category
Data Exfiltration
Confidence
88% confidence
Finding

The skill includes a direct external API endpoint, which creates a clear path for transmitting prompts, search terms, or derived content outside the platform's internal knowledge bases. In a research skill that otherwise emphasizes KB-local retrieval, this external transmission path is more dangerous because users may not expect their queries to leave the trusted environment.

Content

Scanner excerpt · SKILL.md (reported line 106)May include surrounding context.

md
- Dev: https://cbdata.dila.edu.tw/dev/search?q=關鍵詞
- Stable: https://cbdata.dila.edu.tw/stable/search?q=關鍵詞
- 备用: https://api.cbetaonline.cn/search?q=關鍵詞
- 必须用繁体中文检索