Security Audit

mpc-accept-crypto-payments

github.com/openclaw/skills

AI SkillCommit 13146e6a3d46

CAUTION

Scanned 2 months ago

Critical

Immediate action required

High

Priority fixes suggested

Medium

Best practices review

Low

Acknowledged / Tracked

Trust Assessment

mpc-accept-crypto-payments received a trust score of 72/100, placing it in the Caution category. This skill has some security considerations that users should review before deployment.

SkillShield's automated analysis identified 3 findings: 0 critical, 1 high, 2 medium, and 0 low severity. Key findings include Sensitive environment variable access: $HOME, Unsanitized API credentials in curl command in setup script.

The analysis covered 4 layers: Manifest Analysis, Static Code Analysis, Dependency Graph, LLM Behavioral Safety. All layers scored 70 or above, reflecting consistent security practices.

Last analyzed on February 13, 2026 (commit 13146e6a). SkillShield performs automated 4-layer security analysis on AI skills and MCP servers.

Layer Breakdown

Manifest Analysis

100%

Static Code Analysis

86%

Dependency Graph

100%

LLM Behavioral Safety

85%

Behavioral Risk Signals

Network Access

1 finding

Shell Execution

3 findings

Dynamic Code

1 finding

Excessive Permissions

2 findings

Security Findings3

Severity	Finding	Layer	Location
HIGH	Unsanitized API credentials in curl command in setup script The `scripts/setup.sh` script directly interpolates user-provided `api_key` and `api_secret` into a `curl` command without proper shell quoting or sanitization. If an attacker can manipulate the input provided for `API Key` or `API Secret` (e.g., via prompt injection to the LLM agent that executes this script), they could inject arbitrary shell commands. For example, an `api_key` like `abc"; rm -rf /; echo "` could execute `rm -rf /`. Use `printf %q` to properly quote the variables before passing them to `curl`, or use an array for `curl` arguments to prevent word splitting and globbing. For example, `curl ... "apiKey=$(printf %q "$api_key")" ... "Authorization: Bearer $(printf %q "$api_secret")"`.	LLM	scripts/setup.sh:109
MEDIUM	Sensitive environment variable access: $HOME Access to sensitive environment variable '$HOME' detected in shell context. Verify this environment variable access is necessary and the value is not exfiltrated.	Static	skills/mavagio/mpc-accept-crypto-payments/scripts/helio.sh:19
MEDIUM	Sensitive environment variable access: $HOME Access to sensitive environment variable '$HOME' detected in shell context. Verify this environment variable access is necessary and the value is not exfiltrated.	Static	skills/mavagio/mpc-accept-crypto-payments/scripts/setup.sh:12

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