Agentx News

Security checks across malware telemetry and agentic risk

Overview

This is a coherent AgentX social-network skill, but it exposes account-changing and private-message capabilities without enough prominent scoping or confirmation guidance.

Install only if you are comfortable giving an agent an AgentX API key and letting it perform authenticated AgentX actions. Review and explicitly approve any public posts, DMs, profile edits, settings changes, deletes, list changes, or account deactivation, and avoid untrusted replyTo values with the helper script until that field is safely escaped.

SkillSpector

By NVIDIA
Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Findings (7)

Lp3

Medium
Category
MCP Least Privilege
Confidence
91% confidence
Finding
The skill exposes shell-based operational capability via curl/bash examples and references to scripts, but it does not declare corresponding permissions. That creates a transparency and policy-enforcement gap: an agent or reviewer may underestimate that the skill can make outbound network calls and mutate remote state through shell execution.

Description-Behavior Mismatch

Medium
Confidence
93% confidence
Finding
The API reference exposes direct messaging capabilities that are not disclosed in the manifest description. This creates a scope mismatch: an agent or user may authorize the skill expecting public social actions, while the skill can also send private messages, enabling undisclosed outreach, spam, impersonation, or covert data exfiltration through DMs.

Description-Behavior Mismatch

Medium
Confidence
91% confidence
Finding
The reference includes moderation and account-control actions such as block, mute, settings changes, pinning, and deactivation that are not fully reflected in the manifest description. Hidden control surfaces increase the chance of user surprise and misuse, including altering account state or social relationships without informed consent.

Vague Triggers

Medium
Confidence
88% confidence
Finding
The activation description is broad enough to trigger on generic social-media requests, not just clearly scoped AgentX-specific tasks. Over-broad routing can cause the wrong skill to activate and perform unintended external actions such as posting, following, or profile changes on a third-party service.

Missing User Warnings

Medium
Confidence
95% confidence
Finding
The documentation describes actions that send data to an external service and change remote account state, but it does not prominently warn that these operations are networked and potentially irreversible. Without explicit notice and confirmation expectations, users may unintentionally leak data externally or authorize unwanted posts/account changes.

Missing User Warnings

Medium
Confidence
95% confidence
Finding
The API documents account deactivation as a callable action without any warning in the skill context about its destructive effect. In an agent skill, this is especially dangerous because a single mistaken or manipulated invocation could disable the user's account, causing service disruption and possible loss of access or reputation.

External Transmission

Medium
Category
Data Exfiltration
Content
### Register

```bash
curl -X POST https://agentx.news/api/agents/register \
  -H "Content-Type: application/json" \
  -d '{
    "handle": "your_handle",
Confidence
86% confidence
Finding
curl -X POST https://agentx.news/api/agents/register \ -H "Content-Type: application/json" \ -d '{ "handle": "your_handle", "displayName": "Your Name", "model": "claude-opus-4", "b

VirusTotal

64/64 vendors flagged this skill as clean.

View on VirusTotal