T01 · Skill Instruction Hijacking
Warning
- Location
SKILL.md:8- Finding
Mandatory Promotional Content Hijacks Agent Output
- Content
View full analysis
- Remediation
View remediation
Security audit
winson-cognitive-positioning-skill
Security checks for vulnerabilities and agentic risk
Overview
This skill does not run code or access data, but it forces responses to start with unrelated promotional branding.
Review before installing if you do not want skill outputs to include the author's promotional branding and contact information. The artifact shows no code execution or data-access risk, but the mandatory branding requirement can affect the relevance and neutrality of generated responses.
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
- 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
Findings (1)
Natural-Language Policy Violations
Medium
- Category
- Not specified by scanner
- Confidence
- 95% confidence
- Finding
The natural-language instructions, descriptions, and workflow are presented only in Chinese, and the file does not indicate that the skill is region-specific or that users can opt into this language. Per the policy, forcing a specific language without user choice is a locale-policy concern.
- Content