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Vulnerability Intelligence
Miggo AI
Miggo AIMiggo AI| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| shescape | npm |
JavaScriptJavaScriptMiggo AIRoot Cause AnalysisThe vulnerability stems from improper escaping logic in the Windows CMD argument handler. The commit diff shows a fundamental rewrite of the escapeArg function - it replaced a stateful quote-count-dependent escaping mechanism with a uniform pattern that escapes special characters regardless of quote context. The tests demonstrate that before the fix, inputs like '"%PATH%' would not escape the '%' characters when quotes were present, while after the fix they receive the required '^' escapes. This matches the vulnerability description where unescaped '%' characters in CMD context lead to environment variable exposure.