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Security audit

Xero

Security checks for vulnerabilities and agentic risk

Overview

This Xero skill is a disclosed accounting integration that can read and change financial records, but its sensitive access is purpose-aligned and gated by user OAuth and write confirmations.

Install only if you intend to let ClawLink connect to your Xero organization. Review write previews carefully before approving invoices, bills, payments, deletes, voids, journals, or account changes, and verify important tax, currency, and reporting effects in Xero.

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
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (1)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The skill description is very broad ('manage invoices, contacts, bills, payments, and accounting records') and does not clearly constrain when the skill should or should not be invoked. In an agentic environment, overly broad routing can cause the assistant to select this skill for loosely related finance requests, exposing sensitive accounting data or enabling unintended write actions in a high-impact financial system.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.