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Security audit

PostQuest

Security checks for vulnerabilities and agentic risk

Overview

This skill is a clearly scoped PostQuest API helper that can draft, schedule, publish, delete, and analyze social posts, with explicit confirmation requirements for public or destructive actions.

Install only if you trust PostQuest and intend to let an agent use your PostQuest API key. Review scheduling, publishing, and deletion confirmations carefully, and avoid asking it to upload local media files unless you are comfortable sending those files to PostQuest.

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
  • Tool MisuseTool Parameter Abuse, Chaining Abuse, Unsafe Defaults
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (5)

Tool Parameter Abuse

High
Category
Tool Misuse
Confidence
80% confidence
Finding

Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).

Content

Scanner excerpt · SKILL.md (reported line 80)May include surrounding context.

md
| --- | --- |
| List posts | `GET /posts?status=scheduled&from=2026-11-01&to=2026-11-30` |
| Edit a post | `PATCH /posts/{id}` |
| Delete a post (confirm first) | `DELETE /posts/{id}` |
| Media library | `GET /media`, `DELETE /media/{id}` |
| Analytics summary | `GET /analytics/summary?range=30d` |
| Per-post analytics | `GET /analytics`, `GET /analytics/{id}`, `GET /analytics/{id}/daily` |

Tool Parameter Abuse

High
Category
Tool Misuse
Confidence
80% confidence
Finding

Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).

Content

Scanner excerpt · SKILL.md (reported line 81)May include surrounding context.

md
| List posts | `GET /posts?status=scheduled&from=2026-11-01&to=2026-11-30` |
| Edit a post | `PATCH /posts/{id}` |
| Delete a post (confirm first) | `DELETE /posts/{id}` |
| Media library | `GET /media`, `DELETE /media/{id}` |
| Analytics summary | `GET /analytics/summary?range=30d` |
| Per-post analytics | `GET /analytics`, `GET /analytics/{id}`, `GET /analytics/{id}/daily` |
| Refresh analytics | `POST /analytics/sync` (only when the user asks; 15-minute cooldown) |

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% 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 · SKILL.md (reported line 9)May include surrounding context.

md
# PostQuest REST API

PostQuest is a social media scheduler. This skill calls its REST API at `https://api.post-quest.com/v1` with curl. The full OpenAPI spec is at https://api.post-quest.com/openapi.yaml.

## Setup

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% 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 · SKILL.md (reported line 18)May include surrounding context.

md
# PostQuest REST API

PostQuest is a social media scheduler. This skill calls its REST API at `https://api.post-quest.com/v1` with curl. The full OpenAPI spec is at https://api.post-quest.com/openapi.yaml.

## Setup

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 · SKILL.md (reported line 20)May include surrounding context.

bash
PQ="https://api.post-quest.com/v1"
AUTH="Authorization: Bearer $POSTQUEST_API_KEY"
curl -sS "$PQ/social-accounts" -H "$AUTH" -H "Accept: application/json"

Ground rules

Static analysis

No suspicious patterns detected.