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Security audit

Learning Cards (Spaced Repetition)

Security checks across malware telemetry and agentic risk

Overview

This is a disclosed Feishu-backed flashcard skill whose table reads and progress updates match its learning purpose.

Install only if you intend to use Feishu Bitable for flashcards. Confirm the target Feishu table before studying, and avoid storing confidential material unless the table permissions are appropriate.

SkillSpector

By NVIDIA
Vulnerability Patterns
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (1)

Vague Triggers

Medium
Confidence
92% confidence
Finding
The skill advertises very broad trigger phrases such as 'continue studying', 'quiz me', and common Chinese equivalents, which can match ordinary conversational requests and cause unintended activation. In a skill with read/write access to Feishu Bitable, accidental activation can lead to unintended data reads, record updates, or workflow execution without the user clearly intending to use this specific skill.

VirusTotal

66/66 vendors flagged this skill as clean.

View on VirusTotal

Static analysis

No suspicious patterns detected.