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Security audit

对标视频脚本仿写|口播稿提取 + 爆款结构拆解 + 仿写

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed LinkDigest helper that reads a user-provided video link with an API key and helps rewrite a script structure, with no evidence of hidden persistence, unrelated data access, or destructive behavior.

Before installing, be comfortable providing a LinkDigest API key and sending the benchmark video link or share text to linkdigest.dev, where credit charges may apply. Do not provide private or login-only content, and review generated scripts for originality because the skill intentionally imitates structure while warning against copying original wording.

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
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (3)

Undeclared Tool Scope

Medium
Category
MCP Least Privilege
Confidence
89% confidence
Finding

The skill invokes shell/Python, uses an API key from the environment, and performs network access, but it does not declare an explicit tool scope or permissions boundary. That increases the chance the agent can execute this skill with broader-than-necessary capabilities, making accidental secret exposure, unintended command execution, or unauthorized network use harder to constrain or audit.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
92% confidence
Finding

The trigger phrases are broad enough that the skill may activate on loosely related requests about rewriting or analyzing scripts, causing the agent to fetch external URLs and use privileged tooling when the user did not clearly intend that workflow. In a skill with network, shell, and secret-bearing API access, over-broad activation expands the attack surface for prompt-trigger abuse and unintended data handling.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
85% confidence
Finding

The natural-language instructions, examples, and output expectations are entirely Chinese and imply a fixed-language interaction model. There is no indication that users may choose another language or that the Chinese-only behavior is a documented, justified locale constraint.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.