Proof of Concept CVE-2025-27210, a precise Path Traversal vulnerability affecting Node.js applications running on Microsoft Windows. This vulnerability leverages the specific way Windows handles reserved device file names (e.g., AUX, CON, NUL) when combined with directory traversal sequences (../) within file paths processed by functions like path.join() or path.normalize().
python CVE-2025-27210_NodeJS_Path_Traversal_Exploiter.py -t http://localhost:3000/download -f C:\\Windows\System32\drivers\etc\hosts
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The vulnerability was reported by: @theoblivionsage https://x.com/theoblivionsage | https://hackerone.com/oblivionsage