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Security audit

ai agent

Security checks for vulnerabilities and agentic risk

Overview

This is a disclosed Facebook Page publishing guide that handles tokens and posting permissions, with no bundled code or hidden execution behavior.

Install only if you intend to let an agent help with Facebook Page publishing. Treat Page access tokens as sensitive, limit Meta app permissions to the listed Page use case, keep secrets out of logs and git, and review any separately supplied helper scripts before running them because this package only includes the guide.

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
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (2)

Credential Access

High
Category
Privilege Escalation
Confidence
70% confidence
Finding

Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.

Content

Scanner excerpt · SKILL.md (reported line 32)May include surrounding context.

↓ GET /oauth/access_token?grant_type=fb_exchange_token Long-lived User Token (60 days) ↓ GET /me/accounts Page Access Token (never expires*)

text
*Until user changes password or revokes app.

Credential Access

High
Category
Privilege Escalation
Confidence
60% confidence
Finding

Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.

Content

Scanner excerpt · SKILL.md (reported line 94)May include surrounding context.

md
## Security
- Never log tokens or app secrets
- Store all secrets in .env (ignored by git)
- Validate webhook signatures if using webhooks
- Monitor token validity daily with a cron job

Static analysis

No suspicious patterns detected.