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Path Traversal occurrences in Growi
Path traversal vulnerability in GROWI versions v4.2.2 and earlier allows an attacker with administrator rights to read an arbitrary path via a specially crafted URL. (2021-03-10, CVE-2021-20668)
Path traversal vulnerability in GROWI versions v4.2.2 and earlier allows an attacker with administrator rights to read and/or delete an arbitrary path via a specially crafted URL. (2021-03-10, CVE-2021-20669)
Directory traversal vulnerability in GROWI versions prior to v4.2.3 (v4.2 Series), GROWI versions prior to v4.1.12 (v4.1 Series), and GROWI v3 series and earlier GROWI versions prior to v4.2.3 (v4.2 Series), GROWI versions prior to v4.1.12 (v4.1 Series), and GROWI v3 series and earlier allows remote attackers to alter the data by uploading a specially crafted file. (2020-12-16, CVE-2020-5683)
Why Path Traversal can be dangerous
Relative Path Confusion means that your web server is configured to serve responses to ambiguous URLs. This configuration can possibly cause confusion about the correct relative path for the URL. It is also an issue of resources, such as images, styles etc., which are specified in the response using relative path, not the absolute URL.
If the web browser permits to parse "cross-content" response, the attacker may be able to fool the web browser into interpreting HTML into other content types, which can then lead to a cross site scripting attack (link do XSS).