Wiki.js is a wiki app built on Node.js. Prior to version 2.5.254, directory traversal outside of Wiki.js context is possible when a storage module with local asset cache fetching is enabled on a Windows host. A malicious user can potentially read any file on the file system by crafting a special URL that allows for directory traversal. This is only possible on a Wiki.js server running on Windows, when a storage module implementing local asset cache (e.g Local File System or Git) is enabled and that no web application firewall solution (e.g. cloudflare) strips potentially malicious URLs. Commit number 414033de9dff66a327e3f3243234852f468a9d85 fixes this vulnerability by sanitizing the path before it is passed on to the storage module. The sanitization step removes any windows directory traversal sequences from the path. As a workaround, disable any storage module with local asset caching capabilities (Local File System, Git).
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2021-12-06T18:50:10

Updated: 2024-08-04T04:03:08.802Z

Reserved: 2021-11-16T00:00:00

Link: CVE-2021-43800

cve-icon Vulnrichment

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cve-icon NVD

Status : Modified

Published: 2021-12-06T19:15:07.670

Modified: 2024-11-21T06:29:49.037

Link: CVE-2021-43800

cve-icon Redhat

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