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Security audit

Read GPX

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward GPX route analyzer with a local parser and no evidence of hidden persistence or unsafe behavior.

Install only if you are comfortable letting the agent read GPX route files you provide or reference. GPX files can contain sensitive location history, but this skill processes them locally with a standard-library script and does not show hidden network, credential, persistence, or destructive behavior.

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
  • Rogue AgentSelf-Modification, Session Persistence
  • 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 (2)

Session Persistence

Medium
Category
Rogue Agent
Confidence
60% confidence
Finding

Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.

Content

Scanner excerpt · README.md (reported line 13)May include surrounding context.

md
- Extracts waypoints as CP/checkpoint candidates.
- Snaps waypoints to the nearest track point and reports the track kilometer.
- Calculates distance, thresholded climb/descent, elevation range, and segment stats.
- Guides agents to create pacing plans, clock-time roadbooks, and race execution advice.

## Use Cases

Session Persistence

Medium
Category
Rogue Agent
Confidence
60% confidence
Finding

Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.

Content

Scanner excerpt · SKILL.md (reported line 31)May include surrounding context.

md
3. Treat `<wpt>` entries as CP/checkpoint candidates. The script snaps waypoints to the nearest track point and reports the snapped track distance.
4. If no waypoints exist, say that the GPX lacks official CP points and either:
   - ask the user for a CP table, or
   - create provisional terrain-based segments and label them clearly as inferred.
5. Base pacing and roadbooks on segment distance, climb, descent, CP stop time, user ability, terrain, weather, and time of day. Do not spread target time evenly by distance unless the user explicitly asks for a simple average plan.
6. When producing race tables, include both segment time and cumulative/clock arrival time if the user gives a start time.

Static analysis

No suspicious patterns detected.