Description
Yank Note before 3.93.1 contains a path traversal vulnerability that allows unauthenticated remote attackers to read arbitrary files via the path or doc parameter of /api/help. Attackers can supply repeated '../' segments, which bypass the single-replacement sanitization in the publicly allowlisted endpoint, to read SSH keys, configuration, or notes.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| purocean | Yank Note | < 3.93.1 | 3.93.1 |
References
- https://github.com/purocean/yn/issues/543 issue-tracking
- https://github.com/purocean/yn/commit/d3b0ad27f7f6388b878eefd828557ae2d2a8789b patch
- https://github.com/purocean/yn/blob/v3.93.0/src/main/server/index.ts technical-description
- Yank Note v3.93.1 Release Notes release-notes
- VulnCheck Advisory: Yank Note before 3.93.1 Path Traversal via /api/help Endpoint third-party-advisory