جزئیات آسیب‌پذیری

A path traversal vulnerability exists in parisneo/lollms version 2.1.0, specifically in the SPA catch-all route implemented in `backend/routers/ui.py`. The vulnerability arises from the improper handling of user-controlled path input, which is directly joined into a filesystem path without sanitization or containment checks. URL-encoded dot-dot sequences (`%2e%2e`) bypass Starlette's built-in path normalization and are resolved by Python's `pathlib`, allowing an unauthenticated attacker to read arbitrary files on the server. This issue has been resolved in version 3.

• https://github.com/parisneo/lollms/commit/9bc6431ae7b708da76d51e7626a7cf48ff2b1d24
• https://huntr.com/bounties/af3f40a3-38a1-49d8-a5ae-3d72b9b05b98