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Security audit

Teamgram BFF Aggregation

Security checks for vulnerabilities and agentic risk

Overview

This is a documentation-only Teamgram reference skill with no executable behavior, permissions, credential use, or persistence.

This skill appears safe to install as a reference document. Users should be aware that most content is in Chinese and that the listed Telegram/Teamgram handler names describe server APIs rather than actions the skill can perform.

A.I.G

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

SkillSpector

Vulnerability Patterns
  • 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
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (1)

Natural-Language Policy Violations

Low
Confidence
91% confidence
Finding
The main heading and the body of the skill are written in Chinese, and the file does not indicate that language selection is optional or that the skill is intentionally limited to Chinese-speaking users. Under the policy, a skill that effectively enforces a specific language without opt-in can be a natural-language policy issue.

Static analysis

No suspicious patterns detected.