🛡️ Sentinel: Fix OS Command Injection Risk in Clipboard Copy Utility

[piyyy314]

🛡️ Sentinel: Fix OS Command Injection Risk in Clipboard Copy Utility

• 🚨 Severity: HIGH
• 💡 Vulnerability: src/cli/copy.ts previously used execSync(program) where program was passed as a command string (e.g., 'xclip -selection clipboard'). Executing subprocesses with execSync invokes shell command execution by default, introducing command injection vectors and shell subshell overhead.
• 🔧 Fix: Replaced execSync with execFileSync(config.cmd, config.args, { input: str }), invoking pbcopy, clip, or xclip directly with argument arrays without spawning a shell interpreter ({ shell: false }).
• ✅ Verification: Added unit tests in test/jest/unit/cli/copy.spec.ts covering macOS (darwin), Linux (linux), Windows (win32), and unsupported OS fallback behaviors. Verified with npx jest test/jest/unit/cli/copy.spec.ts and npm run lint:js.

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PR created automatically by Jules for task 13199095810355836170 started by @piyyy314

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[piyyy314]

✅ Snyk checks have passed. No issues have been found so far.

Status	Scan Engine	Critical	High	Medium	Low	Total (0)
✅	Open Source Security	0	0	0	0	0 issues

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