An improper path validation vulnerability in AsyncFuncAI/deepwiki-open through commit 16f35a0 allows unauthenticated remote attackers to write to or delete arbitrary files with root privileges. The api/api.py wiki-cache endpoint constructs file paths from user-controlled owner, repo, and repo_type fields without sanitization, enabling path traversal. A second unauthenticated endpoint creates directories, and combined these primitives allow arbitrary file write and delete as the root process user.