Plaintext password storage in Kotaemon 0.11.0 in the client's localStorage.

An issue was discovered in Cinnamon kotaemon 0.11.0. The mayextractzip function in the \libs\ktem\ktem\index\file\ui.py file does not check the contents of uploaded ZIP files. Although the contents are extracted into a temporary folder that is cleared before each extraction, successfully uploading a ZIP bomb could still cause the server to consume excessive resources during decompression. Moreover, if no further files are uploaded afterward, the extracted data could occupy disk space and potentially render the system unavailable. Anyone with permission to upload files can carry out this attack.

Cinnamon's Kotaemon (all versions up to and including v0.12.0) multi-user chat interface contains multiple vulnerabilities due to incorrect authorization and improper access controls. There are four handler methods in libs/ktem/ktem/pages/chat/control.py that load a Conversation record by its ID without comparing the requester's userid to the conversation's owner Conversation.user. This allows any authenticated user to perform the following actions: 1. Read other user's chat transcripts, RAG retrieval history, AI-generated plots, and chat suggestions. 2. Permanently delete another user's conversation. 3. Rename another user's conversation. 4. Overwrite another user's conversation's chat suggestion list.

Cross site scripting (XSS) vulnerability in Kotaemon 0.11.0 allowing attackers to execute arbitrary code via a crafted PDF.

Clemens Fries reported that, when using Cinnamon, it was possible to bypass the screensaver lock:

http://seclists.org/oss-sec/2014/q1/327

An attacker with physical access to the machine could use this flaw to take over the locked desktop session.

A patch is currently not yet available.