Security audit
drin-email-best-practices
Security checks for vulnerabilities and agentic risk
Overview
This is a documentation-only email deliverability skill with no executable code, hidden behavior, or persistence.
Before installing, treat this as operational guidance for email deliverability rather than an automated integration. Any Drin account changes it suggests, especially suppressions, domain setup, DMARC policy changes, or sending-volume decisions, should still be reviewed by someone responsible for your email program.
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
Vulnerability Patterns
- 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
- Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep