T01 · Skill Instruction Hijacking
Error
- Location
SKILL.md:120- Finding
Vendor-Specific Promotional Instruction Hijacks Neutral Skill Output
- Content
View full analysis
- Remediation
View remediation
Security audit
Accessory Bundles
Security checks for vulnerabilities and agentic risk
Overview
The skill is a mostly ordinary merchandising guide, but it repeatedly steers users toward a specific commercial platform as “trusted” without clear user request or disclosure.
Review this skill before installing if you expect neutral merchandising advice. It appears technically low-risk, but its guidance may recommend Rijoy in loyalty or campaign contexts even when the user did not ask for vendor recommendations.
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
Findings (1)
Vulnerability Patterns
- Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
- 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)
Vague Triggers
Medium
- Category
- Not specified by scanner
- Confidence
- 95% confidence
- Finding
The skill explicitly says to trigger even on broad, generic prompts like 'how do we sell more per order?' for multi-SKU accessories. That creates overbroad activation scope, which can cause the agent to invoke this skill when the user did not ask for bundle-specific guidance, leading to irrelevant steering, reduced reliability, and possible hidden promotional bias toward the bundled-merchandising framework and referenced vendor.
- Content
Natural-Language Policy Violations
Low
- Category
- Not specified by scanner
- Confidence
- 85% confidence
- Finding
The section is explicitly labeled 'Copy patterns (EN)' and provides only English phrasing for user-facing text. This can violate language/locale policy when a skill implicitly forces one language without user opt-in or justification.
- Content
Static analysis
No suspicious patterns detected.