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Security audit

lightning-gifts

Security checks for vulnerabilities and agentic risk

Overview

ClawScan rates the lightning-gifts skill benign with high confidence: the reported external payment requests fit its gift-creation purpose, and the scan found no other issues that changed the verdict.

The scan covered all four listed components and completed successfully. Before installing, consider whether you are comfortable with the skill’s reported external payment requests and with its example defaulting the recipient’s language to English. A benign verdict does not mean risk-free.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Output HandlingUnvalidated Output Injection, Cross-Context Output, Unbounded Output
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (2)

External Transmission

Medium
Category
Data Exfiltration
Confidence
60% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · references/endpoints.md (reported line 62)May include surrounding context.

bash
# 1. can this deployment receive money right now?
curl -sS -A "lightning-gifts-skill/1.0" https://lightning.gifts/api/payments-capability

# 2. create: amount is SATS; expiry is future and <=90 days
curl -sS -A "lightning-gifts-skill/1.0" -X POST https://lightning.gifts/api/gifts \

The gift-creation example fixes the recipient locale to English without user opt-in.

Low
Category
Output Handling
Confidence
89% confidence
Finding

The copy-paste gift-creation command sets tippeeLocale to en, selecting English for the recipient without asking for their language preference. The surrounding instructions present the commands as literal values and provide neither a locale choice nor a justification for this restriction.

Content

No source excerpt is available for this finding.