T09 · Insecure Skill Coding Practices
Error
- Location
SKILL.md:147- Finding
SMS Verification Codes Generated with a Non-Cryptographic PRNG
- Content
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- Remediation
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Security audit
China Auth Integration
Security checks for vulnerabilities and agentic risk
Overview
This skill is coherent and documentation-only, but its authentication examples include weak or incomplete security controls that users should review before copying into production.
Install only if you treat it as a high-level integration reference, not production-ready security code. Any generated implementation should add cryptographic OTP generation, enforced rate limits and attempt counters, atomic OTP verification, OAuth state validation, consent handling, encryption for identity data, and provider-specific review.
Vulnerability Patterns
- Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
- 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
Findings (3)
T09 · Insecure Skill Coding Practices
Error
- Location
SKILL.md:137- Finding
SMS Rate Limits Are Declared but Not Enforced and Verification Attempts Are Unlimited
- Content
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- Remediation
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T09 · Insecure Skill Coding Practices
Warning
- Location
SKILL.md:28- Finding
WeChat OAuth Workflow Omits Required State Generation and Validation
- Content
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- Remediation
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Vulnerability Patterns
- Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
- Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
- 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 (4)
External Transmission
Medium
- Category
- Data Exfiltration
- Confidence
- 50% confidence
- Finding
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
- Content
md REDIRECT_URI?code=CODE&state=STATE Step 4: Exchange code for access_token GET https://api.weixin.qq.com/sns/oauth2/access_token? appid=APPID& secret=SECRET& code=CODE&
External Transmission
Medium
- Category
- Data Exfiltration
- Confidence
- 50% confidence
- Finding
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
- Content
md REDIRECT_URI?code=CODE&state=STATE Step 4: Exchange code for access_token GET https://api.weixin.qq.com/sns/oauth2/access_token? appid=APPID& secret=SECRET& code=CODE&
External Transmission
Medium
- Category
- Data Exfiltration
- Confidence
- 50% confidence
- Finding
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
- Content
md REDIRECT_URI?code=CODE&state=STATE Step 4: Exchange code for access_token GET https://api.weixin.qq.com/sns/oauth2/access_token? appid=APPID& secret=SECRET& code=CODE&
Natural-Language Policy Violations
Low
- Category
- Not specified by scanner
- Confidence
- 86% confidence
- Finding
The WeChat user-info example hard-codes
lang=zh_CN, which directs responses to a specific language/locale. The file does not indicate that this locale is optional or chosen based on user preference, so it can violate language/locale choice policy.- Content
Static analysis
No suspicious patterns detected.