webfetch

Security checks across malware telemetry and agentic risk

Overview

This skill is a straightforward webpage-fetching helper, with a real but manageable caution around its advice to bypass TLS certificate checks.

Install only if you trust the external webfetch npm package. Use it for URLs you intentionally want fetched, treat fetched page content as untrusted, check output paths before saving files, avoid sharing proxy values, and avoid --insecure except as a temporary last resort on a trusted network.

SkillSpector

By NVIDIA

Vulnerability Patterns

Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
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)

Missing User Warnings

Medium

Confidence: 94% confidence
Finding: The skill explicitly recommends using `--insecure` to bypass TLS certificate validation when certificate errors occur, but it does not warn that this disables server identity verification and enables man-in-the-middle interception. In a web-fetching skill that may retrieve arbitrary URLs over untrusted networks or proxies, this materially increases the risk of tampered content, credential exposure, and unsafe downstream use of fetched data.

VirusTotal

66/66 vendors flagged this skill as clean.

View on VirusTotal