A vulnerability in mintplex-labs/anything-llm prior to version 1.3.1 allows for path traversal due to improper handling of non-ASCII filenames in the multer library. This vulnerability can lead to arbitrary file write, which can subsequently result in remote code execution. The issue arises when the filename transformation introduces '../' sequences, which are not sanitized by multer, allowing attackers with manager or admin roles to write files to arbitrary locations on the server.

An improper access control vulnerability exists in the mintplex-labs/anything-llm application, specifically within the import endpoint. This vulnerability allows an anonymous attacker, without an account in the application, to import their own database file, leading to the deletion or spoofing of the existing `anythingllm.db` file. By exploiting this vulnerability, attackers can serve malicious data to users or collect information about them. The vulnerability stems from the application's failure to properly restrict access to the data-import functionality, allowing unauthorized database manipulation.

A vulnerability in mintplex-labs/anything-llm allows for a Denial of Service (DoS) condition due to uncontrolled resource consumption. Specifically, the issue arises from the application's failure to limit the size of usernames, enabling attackers to create users with excessively bulky texts in the username field. This exploit results in the user management panel becoming unresponsive, preventing administrators from performing critical user management actions such as editing, suspending, or deleting users. The impact of this vulnerability includes administrative paralysis, compromised security, and operational disruption, as it allows malicious users to perpetuate their presence within the system indefinitely, undermines the system's security posture, and degrades overall system performance.

An uncontrolled resource consumption vulnerability exists in the `upload-link` endpoint of mintplex-labs/anything-llm. This vulnerability allows attackers to cause a denial of service (DOS) by shutting down the server through sending invalid upload requests. Specifically, the server can be made to shut down by sending an empty body with a 'Content-Length: 0' header or by sending a body with arbitrary content, such as 'asdasdasd', with a 'Content-Length: 9' header. The vulnerability is reproducible by users with at least a 'Manager' role, sending a crafted request to any workspace. This issue indicates that a previous fix was not effective in mitigating the vulnerability.

A path traversal vulnerability in mintplex-labs/anything-llm allowed a manager to bypass the `normalizePath()` function, intended to defend against path traversal attacks. This vulnerability enables the manager to read, delete, or overwrite the 'anythingllm.db' database file and other files stored in the 'storage' directory, such as internal communication keys and .env secrets. Exploitation of this vulnerability could lead to application compromise, denial of service (DoS) attacks, and unauthorized admin account takeover. The issue stems from improper validation of user-supplied input in the process of setting a custom logo for the app, which can be manipulated to achieve arbitrary file read, deletion, or overwrite, and to execute a DoS attack by deleting critical files required for the application's operation.

Mintplex-Labs' anything-llm application is vulnerable to improper neutralization of special elements used in an expression language statement, identified in the commit id `57984fa85c31988b2eff429adfc654c46e0c342a`. The vulnerability arises from the application's handling of user modifications by managers or admins, allowing for the modification of all existing attributes of the `user` database entity without proper checks or sanitization. This flaw can be exploited to delete user threads, denying users access to their previously submitted data, or to inject fake threads and/or chat history for social engineering attacks.

In mintplex-labs/anything-llm, a vulnerability exists due to improper input validation in the workspace update process. Specifically, the application fails to validate or format JSON data sent in an HTTP POST request to `/api/workspace/:workspace-slug/update`, allowing it to be executed as part of a database query without restrictions. This flaw enables users with a manager role to craft a request that includes nested write operations, effectively allowing them to create new Administrator accounts.

A vulnerability in mintplex-labs/anything-llm allows for a denial of service (DoS) condition through the modification of a user's `id` attribute to a value of 0. This issue affects the current version of the software, with the latest commit id `57984fa85c31988b2eff429adfc654c46e0c342a`. By exploiting this vulnerability, an attacker, with manager or admin privileges, can render a chosen account completely inaccessible. The application's mechanism for suspending accounts does not provide a means to reverse this condition through the UI, leading to uncontrolled resource consumption. The vulnerability is introduced due to the lack of input validation and sanitization in the user modification endpoint and the middleware's token validation logic. This issue has been addressed in version 1.0.0 of the software.

A race condition vulnerability exists in the mintplex-labs/anything-llm repository, specifically within the user invite acceptance process. Attackers can exploit this vulnerability by sending multiple concurrent requests to accept a single user invite, allowing the creation of multiple user accounts from a single invite link intended for only one user. This bypasses the intended security mechanism that restricts invite acceptance to a single user, leading to unauthorized user creation without detection in the invite tab. The issue is due to the lack of validation for concurrent requests in the backend.

In mintplex-labs/anything-llm, an attacker can exploit improper input validation by sending a malformed JSON payload to the '/system/enable-multi-user' endpoint. This triggers an error that is caught by a catch block, which in turn deletes all users and disables the 'multi_user_mode'. The vulnerability allows an attacker to remove all existing users and potentially create a new admin user without requiring a password, leading to unauthorized access and control over the application.