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Security audit

Hersona Initializer

Security checks for vulnerabilities and agentic risk

Overview

This is a disclosed persona/style helper with no executable code, network access, credentials, or hidden system changes.

Install this only if you want the agent to adopt and maintain the hersona persona/style for the relevant profile. Review or avoid the suggested SOUL.md default command if you prefer persona changes to be manual or session-scoped.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (2)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

The skill description states it initializes a persona on 'first use of a profile' and assists when deviation is 'detected during conversation,' which are broad, automatic activation conditions. In an agent framework, ambiguous auto-triggering can cause unsolicited behavioral overrides across normal chats, reducing user control and creating prompt-scope overreach even without malicious intent.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The recommended configuration automatically reads a SOUL.md default command that enforces a specific persona and Japanese speech style ('tsundere', 'keigo') and says the skill will apply and reapply it as needed. Enforcing language/style behavior without an explicit per-user opt-in can override user intent, distort outputs, and create persistent behavioral manipulation during unrelated conversations.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.