T01 · Skill Instruction Hijacking
Error
- Location
SKILL.md:105- Finding
Mandatory Unverified Third-Party Attribution in Generated Content
- Content
View full analysis
- Remediation
View remediation
Security audit
Eai Awesome Work
Security checks for vulnerabilities and agentic risk
Overview
This skill is a public arXiv newsletter-writing helper with no executable code or privileged behavior, though users should review its broad triggers and fixed source footer.
Install only if you want a Chinese embodied-AI roundup generator. Review or edit the footer before publishing so it lists only sources actually used, and invoke the skill with specific requests to avoid accidental activation from generic phrases.
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
- Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
- 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 (3)
Vague Triggers
Medium
- Category
- Not specified by scanner
- Confidence
- 91% confidence
- Finding
The activation rules describe when to activate but do not define boundaries for when not to activate, leaving room for the skill to respond to loosely related prompts. In a multi-skill agent, ambiguous routing can lead to wrong skill selection, unintended external fetches, and generation of off-target content from user prompts that merely mention related topics.
- Content
Vague Triggers
Medium
- Category
- Not specified by scanner
- Confidence
- 93% confidence
- Finding
The trigger phrase set includes very broad terms such as "awesome work" and "具身论文汇总", which can match generic user requests that are not clearly asking for this specific skill. This can cause unintended activation and unnecessary web access or content generation, especially in environments with many skills competing on overlapping keywords.
- Content
Natural-Language Policy Violations
Medium
- Category
- Not specified by scanner
- Confidence
- 93% confidence
- Finding
The template explicitly instructs authors to provide a Chinese translation: "摘要翻译" and "流畅的中文翻译". Because this is a markdown instruction file and no opt-in or alternative language choice is offered anywhere in the template, it creates a language policy constraint that applies by default.
- Content