T09 · Insecure Skill Coding Practices
Warning
- Location
script/main.py:49- Finding
Unbounded User-Controlled Regular Expression Evaluation Enables ReDoS
- Content
View full analysis
- Remediation
View remediation
Security audit
RegexTester
Security checks for vulnerabilities and agentic risk
Overview
This is a coherent regex-testing helper with no evidence of hidden access, persistence, exfiltration, or destructive behavior, though arbitrary regex evaluation can consume CPU on pathological inputs.
Install only if a Chinese-language regex helper is acceptable. Avoid running untrusted or very complex regex patterns on large text unless the caller can enforce timeouts or resource limits.
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 (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 (2)
Natural-Language Policy Violations
Medium
- Category
- Not specified by scanner
- Confidence
- 95% confidence
- Finding
The description and primary documentation are written in Chinese, and the skill does not indicate that users may interact in other languages or select a preferred locale. Under the policy, forcing a specific language without opt-in is a natural-language policy concern unless clearly justified as region-specific.
- Content
Natural-Language Policy Violations
Medium
- Category
- Not specified by scanner
- Confidence
- 90% confidence
- Finding
The module title and description are written only in Chinese, and the command descriptions and all user-facing output throughout the script are also Chinese-only. For a general regex helper, this imposes a fixed language/locale without any opt-in or stated region-specific justification, which matches the language-policy violation criteria.
- Content
Static analysis
No suspicious patterns detected.